[1] UNICEF, 3 UN Plaza, New York, NY 10017 USA
[2] Univ Toronto, Fraser Mustard Inst Human Dev, Toronto, ON M5S 1A1, Canada
[3] Univ Toronto, Dept Physiol, Toronto, ON M5S 1A1, Canada
[4] Univ Toronto, Dept Obstet & Gynecol, Toronto, ON M5S 1A1, Canada
[5] Univ Toronto, Dept Med, Toronto, ON M5S 1A1, Canada
[6] Harvard TH Chan Sch Publ Hlth, Dept Global Hlth & Populat, Boston, MA USA
[7] Aga Khan Univ, Ctr Excellence Women & Child Hlth, Karachi, Pakistan
[8] Hosp Sick Children, Ctr Global Child Hlth, Toronto, ON, Canada
[9] Yale Sch Publ Hlth, Dept Chron Dis Epidemiol, New Haven, CT USA
[10] Yale Univ, Yale Child Study Ctr, Yale Sch Med, New Haven, CT 06520 USA
[11] Univ Hong Kong, Li Ka Shing Fac Med, Fac Educ, Hong Kong, Hong Kong, Peoples R China
[12] Univ Hong Kong, Li Ka Shing Fac Med, Dept Paediat & Adolescent Med, Hong Kong, Hong Kong, Peoples R China
[13] Univ Calif Berkeley, Sch Publ Hlth, Berkeley, CA 94720 USA
[14] McMaster Univ, Offord Ctr Child Studies, Dept Psychiat & Behav Neurosci, Hamilton, ON, Canada
[15] McMaster Univ, Offord Ctr Child Studies, Dept Pediat, Hamilton, ON, Canada
[16] Univ Southampton, Inst Dev Sci, Southampton SO9 5NH, Hants, England
[17] Univ Southampton, NIHR Biomed Res Ctr, Southampton SO9 5NH, Hants, England
[18] Southampton Univ Hosp, Southampton, Hants, England
[19] Purdue Univ, Dept Psychol Sci, W Lafayette, IN 47907 USA
[20] Columbia Univ, Teachers Coll, New York, NY 10027 USA
[21] New York Univ Steinhardt, New York, NY USA
[22] Univ Missouri, Dept Biol, 8001 Nat Bridge Rd, St Louis, MO 63121 USA