[1] Univ Nebraska Med Ctr, Coll Publ Hlth, Omaha, NE 68198 USA
[2] Univ Hong Kong, Fac Educ, Hong Kong, Peoples R China
[3] NYU, Global TIES, New York, NY USA
[4] Univ New England, Armidale, NSW, Australia
[5] Univ Penn, Philadelphia, PA 19104 USA
[6] UNICEF, New York, NY USA
[7] World Bank, 1818 H St NW, Washington, DC 20433 USA
[8] Interamer Dev Bank, Washington, DC USA
[9] Harvard Univ, Cambridge, MA 02138 USA
[10] Univ Witswatersand, Johannesburg, South Africa