[1] World Hlth Org, Maternal Newborn Child & Adolescent Hlth & Ageing, 20 Ave Appia, CH-1211 Geneva, Switzerland
[2] UNICEF, Data & Analyt Sect, Div Data Analyt Planning & Monitoring, New York, NY USA
[3] Karolinska Inst, Dept Global Publ Hlth, Stockholm, Sweden
[4] Univ Ibadan, Inst Child Hlth, Coll Med, Adolescent Hlth Unit, Ibadan, Nigeria
[5] Burnet Inst, Global Adolescent Hlth Grp, Melbourne, Vic, Australia
[6] Tabriz Univ Med Sci, Tabriz Hlth Serv Management Res Ctr, Tabriz, Iran
[7] World Hlth Org, Dept Mental Hlth & Subst Use, Geneva, Switzerland
[8] UN Major Grp Children & Youth, London, England
[9] Univ Glasgow, MRC CSO Social & Publ Hlth Sci Unit, Glasgow, Lanark, Scotland
[10] UNFPA, Tech Div, Sexual & Reprod Hlth Branch, Geneva, Switzerland
[11] World Hlth Org, Dept Sexual & Reprod Hlth & Res, UNDP UNFPA UNICEF WHO World Bank Special Programm, Geneva, Switzerland