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The Problem of Confounding in Studies of the Effect of Maternal Drug Use on Pregnancy Outcome
In most epidemilogical studies, the problem of confounding adds to the uncertainty in conclusions drawn. This is also true for studies on the effect of maternal drug use on birth defect risks. This paper describes various types of such confounders and discusses methods to identify and adjust for the...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Hindawi Publishing Corporation
2012
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3236404/ https://www.ncbi.nlm.nih.gov/pubmed/22190949 http://dx.doi.org/10.1155/2012/148616 |