1. Bandim Health Project, Indepth Network, Bissau, Guinea-Bissau
2. Department of Public Health, Aarhus University, Aarhus C, Denmark
3. Bandim Health Project, OPEN, Department of Clinical Research, Odense University Hospital/University of Southern Denmark, Odense, Denmark
4. Center for Clinical Research and Prevention, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark