About the Authors
- W. Louis Phipps
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Affiliations Department of Paraclinical Sciences, University of Pretoria, Onderstepoort, Guateng, South Africa, School of Biological and Biomedical Sciences, Durham University, Durham, Co. Durham,United Kingdom
- Stephen G. Willis
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* E-mail: s.g.willis@durham.ac.uk
Affiliation School of Biological and Biomedical Sciences, Durham University, Durham, Co. Durham,United Kingdom
- Kerri Wolter
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Affiliation Vulture Programme, Plot 121 Rietfontein, Brits District, North West Province, South Africa
- Vinny Naidoo
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Affiliation Biomedical Research Centre, University of Pretoria, Onderstepoort, Guateng, South Africa
Competing Interests
The authors confirm that Stephen Willis is a PLOS ONE Editorial Board member. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.
Author Contributions
Acted as the first author's study supervisor: VN SGW. Conceived and designed the experiments: WLP SGW KW VN. Performed the experiments: WLP KW. Analyzed the data: WLP SGW. Wrote the paper: WLP SGW VN.