Korle-Bu Teaching Hospital, Accra, Ghana
BU School of Medicine, Boston, Massachusetts, United States
Framingham Heart Study, Framingham, Massachusetts, United States
Henry M Goldman School of Dental Medicine, Boston, Massachusetts, United States
Boston Medical Center, Boston, Massachusetts, United States
Primary Health Clinic B, Johannesburg, Gauteng, South Africa
Primary Health Clinic A, Johannesburg, Gauteng, South Africa
Boston University School of Public Health, Boston, Massachusetts, United States
Boston University Alzheimer Disease Center, Boston, Massachusetts, United States
Health Economics and Epidemiology Research Office, Johannesburg, Gauteng, South Africa
Clinton Health Access Initiative, Lusaka, Zambia
Boston University School of Medicine, Boston, Massachusetts, United States
Wayne State University, Detroit, Michigan, United States