The Rockefeller Foundation Ms J.Hughes,Associate Director,Population Sciences,The Rockefeller Founda- tion,New York,NY,USA Secretariat Mr J.Chui,Senior Technical Officer,Information,Education and Youth Branch, Technical and Evaluation Division,UNFPA,New York,NY,USA (Joint Secretary) Dr B.Dick,Senior Youth Health Adviser,Health Promotion Unit,UNICEF,New York, NY,USA (Joint Secretary) Ms J.Ferguson,Technical Officer,Adolescent Health and Development,Family and Reproductive Health,WHO,Geneva,Switzerland (Joint Secretary) Dr H.L.Friedman,Chief,Adolescent Health and Development,Family and Repro- ductive Health,WHO,Geneva,Switzerland Dr C.Gardiner,Technical Officer,Reproductive Health and Family Planning Branch,Technical and Evaluation Division,UNFPA,New York,NY,USA(Joint Secretary) Dr G.Slutkin,Centers for Disease Control and Prevention,Atlanta,GA,USA,and School of Public Health,University of Illinois at Chicago,Chicago,IL,USA (Temporary Adviser) Ms D.Widdus,Adolescent Health and Development,Family and Reproductive Health,WHO,Geneva,Switzerland (Joint Rapporteur) Dr S.Woodhouse,UNICEF Representative,Jakarta,Indonesia