1. Department of Internal Medicine Mbeya Zonal Referral Hospital and University of Dar es Salaam Mbeya College of Health and Allied Sciences Mbeya Tanzania
2. Department of Radiology Mbeya Zonal Referral Hospital and University of Dar es Salaam Mbeya College of Health and Allied Sciences Mbeya Tanzania
3. Department of Pathology Mbeya Zonal Referral Hospital and University of Dar es Salaam Mbeya College of Health and Allied Sciences Mbeya Tanzania
4. Department of Surgery Mbeya Zonal Referral Hospital and University of Dar es Salaam Mbeya College of Health and Allied Sciences Mbeya Tanzania
5. Division of Pulmonology Chris Hani Baragwanath Academic Hospital Bertsham South Africa
6. University of the Witwatersrand Johannesburg South Africa