Kabale District Health Services (antenatal clinics at selected sites), Kabale, Kabale District, Uganda
Centre Medicale Paul VI, Ouagadougou, Burkina Faso
Institut de recherche pour le developpement, Dakar, Senegal
Uganda AIDS Commission, Kampala, Uganda
Institut de recherche pour le developpement, Dakar, Senegal
Medical Research Council Laboratories,, Banjul, Gambia
Bandim Health Project, Bissau, Guinea-Bissau
Medical Research Council Laboratories, Banjul, Gambia
Medical Research Council Laboratories, Banjul, Gambia