1. Division of Anatomical Pathology; Faculty of Medicine, University of Stellenbosch and NHLS, Tygerberg Hospital; Cape Town South Africa
2. Division of Otorhinolaryngology, Faculty of Medicine; University of Stellenbosch, Tygerberg Hospital; Cape Town South Africa
3. Department of Oral Pathology; Faculty of Dentistry; University of the Western Cape and NHLS, Tygerberg Hospital; Cape Town South Africa