Cohort Profile: The 1993 Pelotas (Brazil) Birth Cohort Study

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Victora CG, Hallal PC, Araujo CL, Menezes AMB, Wells JC, Barros FC. Cohort Profile: The 1993 Pelotas (Brazil) Birth Cohort Study. Int J Epidemiol 2008; 37:704-9. PDF