1. Department of Anatomy, University of Pretoria, Pretoria, South Africa
2. Faculty of Engineering, Built Environment and Information Technology, University of Pretoria, Pretoria, South Africa
3. Department of Zoology and Entomology, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
4. Onderstepoort Veterinary Animal Research Unit (OVARU), University of Pretoria, Pretoria, South Africa