[1] Univ Ghana, Dept Community Hlth, Accra, Ghana
[2] CNR, Ctr Neurosci, Padua, Italy
[3] Dalhousie Univ, Geriatr Med, Halifax, NS, Canada
[4] WHO, SAGE Team, Geneva, Switzerland
[5] Shanghai Municipal Ctr Dis Control & Prevent Shan, Shanghai, Peoples R China
[6] Capital Med Univ, Beijing Tiantan Hosp, Clin Trial & Res Ctr Stroke, Beijing, Peoples R China
[7] RAMS, FSBI, Natl Res Inst Publ Hlth, Moscow, Russia
[8] Univ Cape Town, Div Geriatr Med, Albertina & Walter Sisulu Inst Ageing Africa, ZA-7700 Rondebosch, South Africa
[9] Groote Schuur Hosp, Int Longev Ctr, Cape Town, South Africa
[10] Int Inst Populat Studies, Bombay, Maharashtra, India
[11] Natl Inst Publ Hlth, Ctr Evaluat Res & Surveys, Cuernavaca, Morelos, Mexico
[12] Univ Oregon, Dept Anthropol, Eugene, OR 97403 USA
[13] Univ Southampton, Fac Med, Southampton SO9 5NH, Hants, England
[14] Vassar Coll, Dept Biol, Poughkeepsie, NY 12601 USA
[15] Univ Gottingen, Dept Econ, Gottingen, Germany
[16] Harvard TH Chan Sch Publ Hlth, Boston, MA USA
[17] ETH, NADEL, Zurich, Switzerland
[18] Univ Gottingen, Dept Econ, Gottingen, Germany
[19] Univ Newcastle, Res Ctr Generat Hlth & Ageing, Newcastle, NSW, Australia