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Barros FC, Victora CG, Vaughan JP, Tomasi E, Horta BL, Cesar JA, Menezes MB, Halpern R, Post CL, del Mar Garcia M.Barros FC, et al. Among authors: post cl.Paediatr Perinat Epidemiol. 2001 Jan;15(1):4-11. doi: 10.1046/j.1365-3016.2001.00320.x.Paediatr Perinat Epidemiol. 2001.PMID: 11237113