1. ICF International; Calverton; MD; USA
2. African Population and Health Research Centre; Nairobi; Kenya
3. INDEPTH Network; Accra; Ghana
4. PATH; Dakar; Senegal
5. Nanoro HDSS; IRSS-DRO/Centre Muraz; Bobo-Dioulasso; Burkina Faso
6. Navrongo HDSS; Navrongo Health Research Centre; Navrongo; Ghana