[1] INDEPTH Network Secretariat, Accra, Ghana
[2] Navrongo Hlth Res Ctr, Navrongo, Ghana
[3] Swiss Trop Inst, CH-4002 Basel, Switzerland
[4] Univ Washington, Washington, WA USA
[5] London Sch Hyg & Trop Med, London WC1, England
[6] Univ KwaZulu Natal, ACDIS, Africa Ctr, Durban, South Africa
[7] Univ Witwatersrand, Dept Publ Hlth, Agincourt DSS, Johannesburg, South Africa
[8] Univ Addis Ababa, Dept Community Hlth, Butajira DSS, Addis Ababa, Ethiopia
[9] ICDDR B, Hlth Syst & Infect Dis Unit, Dhaka, Bangladesh
[10] Ifakara Hlth Res & Dev Ctr, Ifakara, Tanzania
[11] Kenya Med Res Ctr, Ctr Dis Control & Prevent, Kisumu DSS, Kisumu, Kenya
[12] ICDDR B, Matlab DSS, Dhaka, Bangladesh
[13] Inst Rech Dev, Niakhar DSS, Niakhar, Senegal
[14] Tanzania Essential Hlth Intervent Project, Rufiji DSS, Rufiji, Tanzania