1. Department of Medical Education; University of Botswana Faculty of Medicine; Gaborone Botswana
2. Department of Biomedical Sciences; University of Botswana Faculty of Medicine; Gaborone Botswana
3. Department of Surgery; University of Botswana Faculty of Medicine; Gaborone Botswana
4. Department of Internal Medicine; Kanye Seventh-Day Adventist Hospital; Kanye Botswana
5. Department of Internal Medicine; New York-Presbyterian Hospital/Weill Cornell Medical Centre; New York New York USA