1. Feinberg School of Medicine, Northwestern University, Chicago, Illinois
2. Cardiovascular Research Unit, University of Abuja Teaching Hospital, Gwagwalada, Abuja, Nigeria
3. University of Nigeria, Nsukka, Nigeria
4. Holo Healthcare, Nairobi, Kenya
5. The George Institute for Global Health, Sydney, New South Wales, Australia
6. Washington University in St Louis, St Louis, Missouri
7. University of Abuja, Abuja, Nigeria
8. for the Hypertension Treatment in Nigeria Program Investigators