title: Cohorts in low- and middle-income countries: from still photographs to full-length movies.
authors.affiliation: Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil.
authors.forename: Cesar G
authors.initials: CG
authors.lastname: Victora
authors.forename: Fernando C
authors.initials: FC
authors.lastname: Barros
mesh_terms: D000293:Adolescent; D001938:Brazil; D002648:Child; D002669:Child Welfare; D015331:Cohort Studies; D015986:Confounding Factors, Epidemiologic; D003430:Cross-Sectional Studies; D003906:Developing Countries; D006304:Health Status; D006801:Humans; D009752:Nutritional Status