Kate Megan Reid1, Laura Jane Heathfield2. 1. Division of Forensic Medicine and Toxicology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory, 7925, South Africa. Electronic address: kate.reid@alumni.uct.ac.za. 2. Division of Forensic Medicine and Toxicology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory, 7925, South Africa. Electronic address: laura.heathfield@uct.ac.za.