1. Diagnostic Department Premier Services Medical Investments Harare Zimbabwe
2. Department of Chemical Pathology University of Zimbabwe Harare Zimbabwe
3. Department of Pathology (Microbiology) Midlands State University Gweru Zimbabwe
4. Safety, Health, Environment and Quality National Blood Service Zimbabwe Harare Zimbabwe
5. AIDS and TB Department Ministry of Health and Child Care Harare Zimbabwe
6. Unit of Internal Medicine, Faculty of Medicine and Health Sciences University of Zimbabwe Harare Zimbabwe