1. Department of Endoscopy and Surgery, Tenwek Hospital, Bomet, Kenya
2. Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States
3. University of Zambia School of Medicine, Lusaka, Zambia
4. Kamuzu Central Hospital, Lilongwe Malawi
5. Department of Clinical Medicine & Therapeutics, University of Nairobi, Kenya
6. World Gastroenterology Organization Training Centre, Nairobi, Kenya
7. Division of Gastroenterology & Hepatology, Department of Internal Medicine, Addis Ababa University, College of Health Sciences, Ethiopia
8. Department of Medical Services, Kenya Ports Authority
9. Department of Gastroenterology, Nairobi Hospital
10. Division of Gastroenterology and Hepatology, St. Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia
11. Department of Surgery, Saint Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia
12. UNC Project, Lilongwe Malawi University
13. Division of Gastroenterology and Hepatology, Mayo Clinic, Phoenix, Arizona
14. Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States
15. Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, United States