[1] Global Alliance Vaccine & Immunizat, Geneva, Switzerland
[2] Aga Khan Univ, Dept Paediat & Child Hlth, Karachi, Pakistan
[3] Univ Ghana, Sch Publ Hlth, Legon, Ghana
[4] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD USA
[5] MRC, Tygerberg, South Africa
[6] Univ London Imperial Coll Sci & Technol, Fac Med, Dept Infect Dis, London, England
[7] Natl Inst Publ Hlth, Wako, Saitama, Japan
[8] Univ Toronto, Toronto, ON, Canada
[9] Univ Oxford, Clin Trial Serv Unit, Oxford, England
[10] UN, Populat Div, New York, NY 10017 USA
[11] Global Fund Fight AIDS TB & Malaria, Geneva, Switzerland
[12] UNICEF, New York, NY USA
[13] STAT Canada, Ottawa, ON, Canada
[14] Yale Univ, Sch Med, Dept Epidemiol & Publ Hlth, New Haven, CT 06510 USA
[15] London Sch Hyg & Trop Med, Ctr Populat Studies, London WC1, England