Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    Analysis of a monitoring system for bacterial wilt management by seed potato cooperatives in Ethiopia: Challenges and future directions
    Tafesse, Shiferaw ; Lie, Rico ; Mierlo, Barbara van; Struik, Paul C. ; Lemaga, Berga ; Leeuwis, Cees - \ 2020
    Sustainability 12 (2020)9. - ISSN 2071-1050
    Bacterial wilt - Collective action - Disease management - Monitoring system - Seed cooperatives

    Collective action is required to deal with various complex agricultural problems such as invasive weeds and plant diseases that pose a collective risk to farmers. Monitoring systems could help to stimulate collective action and avoid free-riding. The paper develops a novel framework consisting of essential elements of a monitoring system for managing a complex disease like bacterial wilt in potato crops. The framework is used to explore how seed potato cooperatives in Ethiopia operationalised the essential elements of a monitoring system and identifies which challenges remain to be overcome. Data were collected through in-depth interviews, reflective workshops, participant observation, and document analysis. We found that the cooperatives had organised a self-monitoring system to monitor disease occurrence and the disease management practices of their members. Monitoring committees were in charge of the data collection and enforcement of sanctions on farmers who did not adhere to the cooperatives- bylaws. The main challenges included the dependency on visual observation, which does not disclose latent infections, limited financial incentives for the monitoring committee members, lack of trust, weak peer monitoring, and the social and ecological interdependency between producers of ware and seed potatoes. Suggestions are provided to strengthen the monitoring systems of farmers- seed potato cooperatives in Ethiopia. In addition, we discuss the broader value of our novel framework for describing and analysing monitoring systems for future research and intervention.

    Influence of pH on the toxicity of ionisable pharmaceuticals and personal care products to freshwater invertebrates
    Sun, Ming ; Duker, Rahmat Quaigrane ; Gillissen, Frits ; Brink, Paul J. Van den; Focks, Andreas ; Rico, Andreu - \ 2020
    Ecotoxicology and Environmental Safety 191 (2020). - ISSN 0147-6513
    Freshwater invertebrates - Ionisable compounds - Personal care products - pH-related toxicity - Pharmaceuticals

    The majority of pharmaceuticals and personal health-care products are ionisable molecules at environmentally relevant pHs. The ionization state of these molecules in freshwater ecosystems may influence their toxicity potential to aquatic organisms. In this study we evaluated to what extent varying pH conditions may influence the toxicity of the antibiotic enrofloxacin (ENR) and the personal care product ingredient triclosan (TCS) to three freshwater invertebrates: the ephemeropteran Cloeon dipterum, the amphipod Gammarus pulex and the snail Physella acuta. Acute toxicity tests were performed by adjusting the water pH to four nominal levels: 6.5, 7.0, 7.5 and 8.0. Furthermore, we tested the efficiency of three toxicity models with different assumptions regarding the uptake and toxicity potential of ionisable chemicals with the experimental data produced in this study. The results of the toxicity tests indicate that pH fluctuations of only 1.5 units can influence EC50-48 h and EC50-96 h values by a factor of 1.4–2.7. Overall, the model that only focuses on the fraction of neutral chemical and the model that takes into account ion-trapping of the test molecules showed the best performance, although present limitations to perform risk assessments across a wide pH range (i.e., well above or below the substance pKa). Under such conditions, the model that takes into account the toxicity of the neutral and the ionized chemical form is preferred. The results of this study show that pH fluctuations can have a considerable influence on toxicity thresholds, and should therefore be taken into account for the risk assessment of ionisable pharmaceuticals and personal health-care products. Based on our results, an assessment factor of at least three should be used to account for toxicity differences between standard laboratory and field pH conditions. The models evaluated here can be used to perform refined risk assessments by taking into account the influence of temporal and spatial pH fluctuations on aquatic toxicity.

    Governing a Collective Bad: Social Learning in the Management of Crop Diseases
    Damtew, Elias ; Mierlo, Barbara van; Lie, Rico ; Struik, Paul ; Leeuwis, Cees ; Lemaga, Berga ; Smart, Christine - \ 2020
    Systemic Practice and Action Research 33 (2020). - ISSN 1094-429X - p. 111 - 134.
    Collective action - Communication - Crop disease - Late blight - Social learning

    There has been strong research interest in designing and testing learning approaches for enhancing and sustaining the capacity of communities to manage collective action problems. Broadening the perspective from well-known social learning approaches in natural resource management, this study explores how social learning as a communicative process influences collective action in contagious crop disease management. A series of facilitated discussion and reflection sessions about late blight management created the social learning space for potato farmers in Ethiopia. Communicative utterances of participants in the sessions served as the units of analysis. The study demonstrates how and to what extent social learning, in the form of aligned new knowledge, relations and actions occurred and formed the basis for collective action in the management of late blight.

    Detecting temporal changes in the extent of High Nature Value farmlands : The case-study of the Entre-Douro-e-Minho Region, Portugal
    Lomba, A. ; Buchadas, A. ; Corbelle-Rico, E. ; Jongman, R. ; McCracken, D. - \ 2020
    Landscape and Urban Planning 195 (2020). - ISSN 0169-2046

    In the European Union, the socio-ecological systems underlying the maintenance of low-intensity farming systems supporting the occurrence of several species and habitats are known as High Nature Value farmlands (HNVf). Detecting trends of change in the extent and location of HNVf is essential to monitor the impact of policies on biodiversity. However, assessing changes in HNVf extent is challenging, due to the lack of tested approaches and lack of data with adequate spatial and temporal resolutions. We address such challenge by evaluating the usefulness of an existing methodological framework to analyse changes in the extent of HNVf in the agrarian region of Entre-Douro-e-Minho, Northwestern Portugal between 1989 and 2009. Changes in the extent of HNVf between 1989 and 2009 were analysed for whole study area, and within and outside areas designated for conservation. Results depicted a trend of decreasing extent of HNVf between 1989 and 2009, irrespective of being inside or outside a nature conservation designation. This provides an early warning that nature conservation designation does not ensure HNVf persistence. We consider that this research represents an advance in the field of HNVf assessment and monitoring. In particular, by providing an approach to analyze the location and changes over time of HNVf types in relation to areas under distinct legal protection (such as the Natura 2000 network), it can help assess the role that such nature conservation designations have in protecting HNVf and indicate where additional agricultural or nature conservation policy and support mechanisms may need to be targeted.

    Explicit aerosol-cloud interactions in the Dutch Atmospheric Large-Eddy Simulation model DALES4.1-M7
    Bruine, Marco De; Krol, Maarten ; Vilà-guerau De Arellano, Jordi ; Röckmann, Thomas - \ 2019
    Geoscientific Model Development 12 (2019)12. - ISSN 1991-959X - p. 5177 - 5196.
    Large-eddy simulation (LES) models are an excellent tool to improve our understanding of aerosol–cloud interactions (ACI). We introduce a prognostic aerosol scheme with multiple aerosol species in the Dutch Atmospheric Large-Eddy Simulation model (DALES), especially focused on simulating the impact of cloud microphysical processes on the aerosol population. The numerical treatment of aerosol activation is a crucial element for simulating both cloud and aerosol characteristics. Two methods are implemented and discussed: an explicit activation scheme based on κ-Köhler theory and a more classic approach using updraught strength. Sample model simulations are based on the Rain in Shallow Cumulus over the Ocean (RICO) campaign, characterized by rapidly precipitating warm-phase shallow cumulus clouds.

    We find that in this pristine ocean environment virtually all aerosol mass in cloud droplets is the result of the activation process, while in-cloud scavenging is relatively inefficient. Despite the rapid formation of precipitation, most of the in-cloud aerosol mass is returned to the atmosphere by cloud evaporation. The strength of aerosol processing through subsequent cloud cycles is found to be particularly sensitive to the activation scheme and resulting cloud characteristics. However, the precipitation processes are considerably less sensitive. Scavenging by precipitation is the dominant source for in-rain aerosol mass. About half of the in-rain aerosol reaches the surface, while the rest is released by evaporation of falling precipitation. The effect of cloud microphysics on the average aerosol size depends on the balance between the evaporation of clouds and rain and ultimate removal by precipitation. Analysis of typical aerosol size associated with the different microphysical processes shows that aerosols resuspended by cloud evaporation have a radius that is only 5 % to 10 % larger than the originally activated aerosols. In contrast, aerosols released by evaporating precipitation are an order of magnitude larger.
    Students’ experiences and perceptions of multicultural group work.
    Brinkman, Dine ; Popov, Vitaliy ; Fortuin, Karen ; Lie, Rico - \ 2019
    Feeding in Birds: Thriving in Terrestrial, Aquatic, and Aerial Niches
    Rico-Guevara, A. ; Sustaita, D. ; Gussekloo, Sander ; Olsen, A. ; Bright, J. ; Corbin, C. ; Dudley, R. - \ 2019
    In: Feeding in Vertebrates: Evolution, Morphology, Behavior, Biomechanics / Bels, Vincent, Whishaw, Ian Q., Springer International Publishing (Fascinating Life Sciences ) - ISBN 9783030137380 - p. 643 - 693.
    We start with a general description of the structure of the feeding apparatus in birds (Sect. 17.1), then we describe the biomechanics of those parts (Sect. 17.2), including a review of contemporary approaches to the study of bird feeding morphology and function. We establish explicit links between form and function, and consequent relations to foraging behaviors. In Sect. 17.3, we systematically explore the vast diversity of bird feeding environments by grouping foraging (searching) and feeding (handling—consumption) mechanisms that birds use on land, air, and water. Each one of these subsections addresses not only what birds eat, but also how they feed. We dedicate a separate Sect. (17.4) to drinking because most birds have to perform this process regardless of their diet, and often using different mechanisms than the ones they use to feed. We then discuss evolutionary forces and patterns in bird feeding (convergences, radiations, trade-offs, etc.), including functions different from handling and ingestion that also act to shape the feeding apparatus in birds (Sect. 17.5).
    Resilience and household food security: a review of concepts, methodological approaches and empirical evidence
    Ansah, Isaac Gershon Kodwo ; Gardebroek, Cornelis ; Ihle, Rico - \ 2019
    Food Security 11 (2019)6. - ISSN 1876-4517 - p. 1187 - 1203.
    Food security - Households - Measurement - Resilience

    The way economic studies conceptualize and measure resilience is very heterogeneous. This does not only challenge scientific progress, but also raises the question of whether they measure one identical concept with different methods or whether they measure different understandings of resilience. This paper provides a review of concepts, methodological approaches and empirical evidence on resilience from a food security perspective, focusing on socio-economic research. We perform a systematic literature search to identify recent publications that analyze resilience from the perspective of household food security. We examine the historical evolution of concepts and methods used for measuring resilience and synthesize the evidence. We find that conceptual and analytical models have evolved over time, with important technical adjustments. Studies initially focused on measuring resilience as an end in itself, but more recently resilience is understood as a means to an ultimate end, hence resilience capacity is measured instead. Also, resilience was initially measured as an indicator of food security. Currently it is measured distinctly from food security. Multivariate techniques are found to be frequently used to quantify resilience. The empirical evidence suggests that households with higher resilience capacity tend to have less child malnutrition and better food security. We find that causal pathways through which resilience capacity affects food security in a microeconomic framework are barely explicitly considered in empirical analyses. Therefore, we suggest a model which explicitly addresses these pathways.

    Identifying social norms in physical aspects of food environments: A photo study
    Raghoebar, Sanne ; Rongen, Sofie van; Lie, Rico ; Vet, Emely de - \ 2019
    Appetite 143 (2019). - ISSN 0195-6663
    Eating behavior - Food environments - Photo documentation - Physical cues - Semiology - Social norms

    It is widely accepted that physical food environments can contribute to unhealthy eating, but less is known about how physical cues in these environments actually stimulate eating. Our study starts from the assumption that social norms are embedded in physical cues and aims to make an inventory of physical cues that communicate what is socially accepted as normal and/or appropriate to eat in a Dutch outside-the-home food context. In Study 1, we conducted a qualitative study in which photographs taken in self-service food environments were analyzed using strategies from photo documentation and semiology. Grounded theory was applied to identify a wide variety of specific physical cues that were ultimately grouped into 18 higher level categories of physical cues (e.g. consumption traces, product availability). Most cue categories were associated with either descriptive or injunctive social norms, but some were associated with both types. In Study 2, we aimed to quantitatively cross-validate the social norm interpretations among laypeople (N = 173) by focusing on two selected photographs. More than half of the physical cues that participants identified in these photographs as being influential had been identified in Study 1 as cues bearing a normative message. The results further indicated that other people's behavior is easier to recognize in physical food environments than signals about what ought to be done. Given the great variety of identified physical cues associated with social norms, we posit that social norms are widely embedded in food environments and might guide eating behavior. Further research should study the effects of these cues on behavior and test whether the underlying process can be attributed to social norm interpretations.

    Combining market structure and econometric methods for pricetransmission analysis
    Acosta, Alejandro ; Ihle, Rico ; Cramon-Taubadel, Stephan von - \ 2019
    Food Security 11 (2019)4. - ISSN 1876-4517 - p. 941 - 951.
    Food Policy Design - Food Price Formation - Market Structure - Price Transmission

    Much attention has been devoted in the literature to the analysis of price transmission along food supply chains. Price transmission analysis has traditionally focused on applying econometric methods to assess price dynamics and interrelationships. However, the exclusive application of econometric methods without considering the market’s institutional context has limited potential to support evidence-based policy-making. In recent years, studies have thus attempted to combine the use of quantitative and qualitative methods to better understand the level of performance of food value chains. This study contributes to broadening these empirical toolkits by suggesting a structured analytical framework that benefits from the simultaneous application of econometric and market-structure methods in price transmission analysis. To illustrate the application of the framework, we analyzed the milk market of Panama.

    Is the Effect Assessment Approach for Fungicides as Laid Down in the European Food Safety Authority Aquatic Guidance Document Sufficiently Protective for Freshwater Ecosystems?
    Rico, Andreu ; Brock, Theo C.M. ; Daam, Michiel A. - \ 2019
    Environmental Toxicology and Chemistry 38 (2019)10. - ISSN 0730-7268 - p. 2279 - 2293.
    Aquatic toxicity - Ecological risk assessment - Fungicides - Laboratory single-species tests - Mesocosms

    In Europe, the European Food Safety Authority aquatic guidance document describes the procedures for the derivation of regulatory acceptable concentrations (RACs) for pesticides in edge-of-field surface waters on the basis of tier-1 (standard test species), tier-2 (geometric mean and species sensitivity distributions [SSDs]), and tier-3 (model ecosystem studies) approaches. In the present study, the protectiveness of such a tiered approach was evaluated for fungicides. Acute and chronic RACs for tier-1 and tier-2B (SSDs) were calculated using toxicity data for standard and additional test species, respectively. Tier-3 RACs based on ecological thresholds (not considering recovery) could be derived for 18 fungicides. We show that tier-1 RACs, in the majority of cases, are more conservative than RACs calculated based on model ecosystem experiments. However, acute tier-2B RACs do not show a sufficient protection level compared with tier-3 RACs from cosm studies that tested a repeated pulsed exposure regime or when relatively persistent compounds were tested. Chronic tier-2B RACs showed a sufficient protection level, although they could only be evaluated for 6 compounds. Finally, we evaluated the suitability of the calculated RACs for 8 compounds with toxicity data for fungi. The comparison shows that the current RACs for individual fungicides, with a few exceptions (e.g., tebuconazole), show a sufficient protection level for structural and functional fungal endpoints. However, more data are needed to extend this comparison to other fungicides with different modes of action. Environ Toxicol Chem 2019:1–15.

    Toward on-site food authentication using nanopore sequencing
    Voorhuijzen-Harink, Marleen M. ; Hagelaar, Rico ; Dijk, Jeroen P. van; Prins, Theo W. ; Kok, Esther J. ; Staats, Martijn - \ 2019
    Food Chemistry: X 2 (2019). - ISSN 2590-1575
    The application of multi-locus DNA metabarcoding in traditional medicines
    Arulandhu, Alfred J. ; Staats, Martijn ; Hagelaar, Rico ; Peelen, Tamara ; Kok, E.J. - \ 2019
    Journal of Food Composition and Analysis 79 (2019). - ISSN 0889-1575 - p. 87 - 94.
    Customs authority - Declared and undeclared ingredients - DNA extraction - Endangered species - Multi-locus DNA metabarcoding - Traditional medicines

    Traditional medicines (TMs) are globally traded and the consumer market is estimated to be $83 billion per annum. The diversity of TM matrices and poor quality of DNA extracted from highly processed TMs makes it challenging to apply standardized DNA-based procedures for ingredient analysis. In the present study, multiple DNA extraction methods were compared for the ability to obtain amplifiable DNA from TMs belonging to different matrices. The best performing DNA extraction was used to successfully obtain DNA from 18 TMs that were subsequently analyzed with a multi-locus DNA metabarcoding method to assess the species composition. In the analysis mini-barcodes accounted for the identification of most of the taxa in the TMs. The plant (ITS2) and animal (mini-16S) mini-barcode markers showed to allow species level identification of targets. In a few cases, full-length barcode markers, requiring higher quality DNA, proved to be critically informative at this level. The applied strategy resulted in the identification of a wide range of declared and undeclared ingredients, including endangered species (Ursus arctos and Aloe sp.). In 14 TMs less than 65% of the identified taxa matched the product label, and in two TMs none of the identified species matched the ingredients list. The current study shows that a multi-locus DNA metabarcoding approach is an informative analytical tool for species identification in TMs, including the potential identification of endangered species.

    ICTs for Learning in the Field of Rural Communication
    Lie, Rico ; Witteveen, Loes - \ 2019
    In: Handbook of Communication for Development and Social Change / Servaes, Jan, Springer Nature Singapore - ISBN 9789811070358 - 18 p.
    This contribution surveys learning approaches in the field of agricultural extension, agricultural advisory services, and rural communication and explores their relationships with Information and Communication Technologies (ICTs). It makes a distinction between theory-based approaches to learning and design-based approaches to learning. The reviewed theory-based approaches are social learning, experiential learning, collaborative learning, and transformative learning and the design-based approaches are visual learning, intercultural learning, and distance learning. The choice for surveying these specific approaches is based on the relevance that these approaches have for the field of agricultural extension, agricultural advisory services, and rural communication. It is concluded that learning itself is to be seen as social and behavioral change and that the group is much valued in existing learning processes. Furthermore, experiences and reflections are central elements in all reviewed learning processes, and the visual and the cultural play crucial roles.
    Recent insights on uncertainties present in integrated catchment water quality modelling
    Tscheikner-Gratl, Franz ; Bellos, Vasilis ; Schellart, Alma ; Moreno-Rodenas, Antonio ; Muthusamy, Manoranjan ; Langeveld, Jeroen ; Clemens, Francois ; Benedetti, Lorenzo ; Rico-Ramirez, Miguel Angel ; Carvalho, Rita Fernandes de; Breuer, Lutz ; Shucksmith, James ; Heuvelink, Gerard B.M. ; Tait, Simon - \ 2019
    Water Research 150 (2019). - ISSN 0043-1354 - p. 368 - 379.
    Complexity management - Integrated catchment modelling - Sub-models of integrated modelling - Uncertainty - Water quality

    This paper aims to stimulate discussion based on the experiences derived from the QUICS project (Quantifying Uncertainty in Integrated Catchment Studies). First it briefly discusses the current state of knowledge on uncertainties in sub-models of integrated catchment models and the existing frameworks for analysing uncertainty. Furthermore, it compares the relative approaches of both building and calibrating fully integrated models or linking separate sub-models. It also discusses the implications of model linkage on overall uncertainty and how to define an acceptable level of model complexity. This discussion includes, whether we should shift our attention from uncertainties due to linkage, when using linked models, to uncertainties in model structure by necessary simplification or by using more parameters. This discussion attempts to address the question as to whether there is an increase in uncertainty by linking these models or if a compensation effect could take place and that overall uncertainty in key water quality parameters actually decreases. Finally, challenges in the application of uncertainty analysis in integrated catchment water quality modelling, as encountered in this project, are discussed and recommendations for future research areas are highlighted.

    Use of models for the environmental risk assessment of veterinary medicines in European aquaculture: Current situation and future perspectives
    Rico, Andreu ; Vighi, Marco ; Brink, Paul J. van den; Horst, Mechteld ter; Macken, Ailbhe ; Lillicrap, Adam ; Falconer, Lynne ; Telfer, Trevor C. - \ 2019
    Reviews in Aquaculture 11 (2019)4. - ISSN 1753-5123 - p. 969 - 988.
    Antimicrobials - Antiparasitics - Aquaculture - Environmental models - Environmental risk assessment

    Veterinary Medicinal Products (VMPs) are used in intensive aquaculture production to treat a wide range of bacterial and parasitic infestations. Their release into the environment poses concerns regarding their potential ecotoxicological risks to aquatic ecosystems, which need to be evaluated making use of appropriate Environmental Risk Assessment (ERA) schemes and models. This study presents an overview of the major aquaculture production systems in Europe, the VMPs most commonly used, and the environmental quality standards and regulatory procedures available for their ERA. Furthermore, it describes the state-of-the-art on the development of environmental models capable of assessing the fate, exposure, ecotoxicological effects and risks of VMPs in aquaculture production systems, and discusses their level of development and implementation within European aquaculture. This study shows that the use of environmental models in regulatory ERA is somewhat limited in many European countries. Major efforts have been dedicated to assess the fate and exposure of antiparasitic compounds in salmonid cage systems, particularly in Scotland, while models and scenarios for assessing dispersal of antimicrobials, in general, and antiparasitic compounds in the Mediterranean as well as in Scandinavian regions are less available. On the other hand, the use of ecological models for assessing the effects and risks of VMPs is almost absent. Recommendations are provided to improve the chemical exposure and effect assessments and the ecological realism of the modelling outcomes, paying special attention to the protection goals set for the regulatory ERA of VMPs in Europe.

    Informal tourism entrepreneurs’ capital usage and conversion
    Çakmak, Erdinç ; Lie, Rico ; Selwyn, Tom - \ 2019
    Current Issues in Tourism 22 (2019)18. - ISSN 1368-3500 - p. 2250 - 2265.
    Bourdieu - dream capital - forms of capital - Informal tourism entrepreneurs - Thailand - visual research
    This article examines informal entrepreneurs’ capital usage and conversion in the Thai tourism sector. On the Bourdieusian assumption that people perpetually transform tangible and intangible forms of capital, this study seeks to answer how informal tourism entrepreneurs transform intangible capital into tangible capital, and vice versa, at different stages of their development process. A visual dataset of 78 filmed interviews and of 426 photographs of informal entrepreneurs in three tourist-island destinations in Thailand was compiled and analysed using thematic qualitative analysis. The results show the importance of diversification of capital mix at informal entrepreneurs’ different development stages. Whereas cultural and symbolic capital are more salient for freelancers and small-size entrepreneurs, economic and social capital are more important for mid-size and large informal entrepreneurs. Furthermore, this study introduces dream capital as a new form of capital. Developing countries are recommended to introduce a policy on profiling informal tourism entrepreneurs so that the appropriate level of regulation can be applied in order to maintain or increase their benefits to society.
    Book review : Constructing a New Framework for Rural Development, P. Milone, F. Ventura and J. Ye (eds) (2015). 338 pp., Research in Rural Sociology and Development Vol. 22, Emerald UK, ISBN: 978-1-78441-622-5.
    Milone, Pierluigi ; Fuller, Tony ; Ventura, Flaminia ; Ploeg, Jan Douwe Van Der; Marsden, Terry ; Schneider, Sergio ; Ye, Jingzhong ; Carolan, Michael S. ; Scott, Steffanie ; Monllor I Rico, Neus - \ 2018
    Journal of Rural Studies 57 (2018). - ISSN 0743-0167 - p. 78 - 87.
    The application of multi-locus DNA metabarcoding in traditional medicines
    Arulandhu, A.J. ; Staats, M. ; Hagelaar, Rico ; Peelen, Tamara ; Kok, E.J. - \ 2018
    Wageningen University
    PRJEB25620 - PRJEB25620 - ERP107554
    DNA metabarcoding was applied to 18 authentic traditional medicines.
    Erratum to: ALF: a strategy for identification of unauthorized GMOs in complex mixtures by a GW-NGS method and dedicated bioinformatics analysis
    Košir, Alexandra Bogožalec ; Arulandhu, Alfred J. ; Voorhuijzen, Marleen M. ; Xiao, Hongmei ; Hagelaar, Rico ; Staats, Martijn ; Costessi, Adalberto ; Žel, Jana ; Kok, Esther J. ; Dijk, Jeroen P. van - \ 2018
    Scientific Reports 8 (2018). - ISSN 2045-2322

    A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.

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