1. Vetsuisse Faculty, Clinic for Zoo Animals, Exotic Pets and Wildlife; University of Zurich; Zurich Switzerland
2. Florisbad Quaternary Research; National Museum; Bloemfontein South Africa
3. National Zoological Gardens of South Africa; Pretoria South Africa
4. Department of Genetics; University of the Free State; Bloemfontein South Africa
5. Faculty of Veterinary Science; Department of Paraclinical Sciences; Onderstepoort South Africa