1. Division of Toxicology, Wageningen University and Research, Wageningen, The Netherlands
2. Department of Public Health, Pharmacology and Toxicology, Faculty of Veterinary Sciences, University of Nairobi, Nairobi, Kenya
3. Department of Animal Science, Meru University of Science and Technology, Meru, Kenya
4. Wageningen Food Safety Research, Part of Wageningen University and Research, Wageningen, The Netherlands