Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10513831 | Journal of Clinical Epidemiology | 2013 | 9 Pages |
Abstract
Expansion of the time window to include intervals before pregnancy can lead to lower specificity and underestimation of risk associations.
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Authors
Svetlana Skurtveit, Randi Selmer, Aage Tverdal, Kari Furu, Wenche Nystad, Marte Handal,