Maternal use of oral contraceptives and risk of birth defects in Denmark: prospective, nationwide cohort study

BMJ, 6 January 2016

This prospective cohort study aims to research whether oral contraceptive use around the time of pregnancy onset is associated with an increased risk of major birth defects?

The study finds that oral contraceptive exposure just before or during pregnancy does not appear to be associated with an increased risk of major birth defects.

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