[1] Indiana Univ Sch Med, Dept Pediat, Div Adolescent Med, Indianapolis, IN USA
[2] Indiana Univ Purdue Univ Indianapolis, Dept Sociol, Indianapolis, IN USA
[3] Univ Minnesota, Dept Family Med & Community Hlth, Med Sch, Minneapolis, MN USA
[4] Sohag Univ, Fac Med, Dept Dermatol Venereol & Androl, Sohag, Egypt
[5] Curtin Univ, Curtin Sch Populat Hlth, Discipline Hlth Promot & Sexol, Perth, Australia
[6] Amref Int Univ, Nairobi, Kenya
[7] Univ Luxembourg, Dept Behav & Cognit Sci, Esch Sur Alzette, Luxembourg
[8] Univ Hosp LMU Munich, Dept Infect Dis, Munich, Germany
[9] London Sch Hyg & Trop Med, Fac Infect & Trop Dis, London, England
[10] Univ Ghent, Dept Publ Hlth & Primary Care, Ghent, Belgium
[11] Fdn Profess Dev, Rome, Italy
[12] Univ Copenhagen, Ctr Med Sci & Technol Studies, Copenhagen, Denmark
[13] Univ North Carolina Chapel Hill, Dept Med, Chapel Hill, NC USA
[14] Univ Basel, Dept Psychol, Basel, Switzerland
[15] Univ North Carolina Greensboro, Dept Publ Hlth Educ, Greensboro, NC USA
[16] Indiana Univ Sch Med, Dept Pediat, Div Adolescent Med, 410West 10th St,Room 1001, Indianapolis, IN 46202 USA