[1] Stanford Univ, Sch Med, Dept Epidemiol & Populat Hlth, Stanford, CA 94305 USA
[2] Stanford Univ, Sch Med, Dept Med, Stanford, CA 94305 USA
[3] Stanford Univ, Sch Med, Dept Med, Stanford Prevent Res Ctr, Stanford, CA 94305 USA
[4] Malardalen Univ, Dept Publ Hlth Sci, Sch Hlth Care & Social Welf, Box 883, S-72123 Vasteras, Sweden
[5] Univ Cape Town, Fac Hlth Sci, Dept Human Biol, Div Exercise Sci & Sports Med,Hlth Phys Act Lifes, ZA-7725 Cape Town, South Africa
[6] Auckland Univ Technol, Fac Hlth & Environm Sci, Sch Sport & Recreat, Auckland 92006, New Zealand
[7] Univ los Andes, Sch Med, Bogota 111711, Colombia
[8] Univ Southern Queensland, Sch Hlth & Well Being, Ipswich, Qld 4305, Australia
[9] Univ los Andes, Dept Ind Engn, Bogota 111711, Colombia
[10] Karolinska Inst, Dept Med Epidemiol & Biostat, S-17177 Stockholm, Sweden
[11] Glasgow Caledonian Univ, Sch Hlth & Life Sci, Cowcaddens Rd, Glasgow G4 0BA, Lanark, Scotland
[12] Friedrich Alexander Univ Erlangen Nurnberg, Dept Sport Sci & Sport, D-91058 Erlangen, Germany
[13] Stanford Univ, Dept Pediat, Sch Med, Stanford, CA 94305 USA
[14] Gardner Packard Childrens Hlth Ctr, Atherton, CA 94027 USA
[15] Univ London, Sch Oriental & African Studies SOAS, London WC1H 0XG, England
[16] Arkansas Coll Hlth Educ, Hlth & Wellness Ctr, Res Inst, Ft Smith, AR 72901 USA
[17] Univ Queensland, Fac Med, Brisbane, Qld 4072, Australia