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The use of restricted controls to prevent recall bias in case-control studies of reproductive outcomes

✍ Scribed by Drews, Carolyn; Greenland, Sander; Flanders, W.Dana


Book ID
123523969
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
794 KB
Volume
3
Category
Article
ISSN
1047-2797

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that are prospective non-case control. In the absence of random or at least nondifferential assignment of exposure, the possibility of undetected confounding due to association of exposure or defect with some uncontrolled variable complicates causal interpretation of the association of a birth defec