[1] Populat Council, New Delhi, India
[2] Univ Ghana, Dept Populat Family & Reprod Hlth, Sch Publ Hlth, Accra, Ghana
[3] Univ Ghana, Dept Epidemiol & Dis Control, Sch Publ Hlth, Accra, Greater Accra, Ghana
[4] Inst Clin Effectiveness & Hlth Policy, Buenos Aires, Argentina
[5] Harvard Univ, TH Chan Sch Publ Hlth, Dept Global Hlth & Populat, Women & Hlth Initiat, Boston, MA 02115 USA
[6] Univ Nacl La Matanza, Dept Hlth Sci Kinesiol & Rehabil, Buenos Aires, Argentina
[7] Univ N Carolina, Gillings Sch Global Publ Hlth, Dept Maternal & Child Hlth, Chapel Hill, NC USA