1 Department of Forensic Medicine, Faculty of Health Sciences, University of Pretoria, South Africa. u26376645@tuks.co.za.
2 New South Wales Health Pathology, Forensic and Analytical Science Service (FASS), Newcastle, Australia. u26376645@tuks.co.za.
3 Department of Chemical Pathology, Faculty of Health Sciences, University of Pretoria and National Health Laboratory Service, Pretoria, South Africa. u26376645@tuks.co.za.