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Secular trends in smoking during pregnancy according to income and ethnic group: four population-based perinatal surveys in a Brazilian city
Silveira, Mariangela F, Matijasevich, Alicia, Menezes, Ana Maria B, Horta, Bernardo L, Santos, Ina S, Barros, Aluisio J D, Barros, Fernando C, Victora, Cesar GVolume:
6
Language:
english
Journal:
BMJ Open
DOI:
10.1136/bmjopen-2015-010127
Date:
January, 2016
File:
PDF, 718 KB
english, 2016