Determinants of self-reported smoking and misclassification during pregnancy, and analysis of optimal cut-off points for urinary cotinine: A cross-sectional study
Publication date:
2013
Publisher version:
Citación:
BMJ Open, 3(1), (2013); doi:10.1136/bmjopen-2012-002034
ISSN:
Identificador local:
20121814
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