%0 Generic %B Pharmacoepidemiology and Drug Safety %D 1993 %P 51-63 %R 10.1002/pds.2630020107 %T A concurrent cohort study of oral contraceptive users from the VAMP research bank %U https://onlinelibrary.wiley.com/doi/abs/10.1002/pds.2630020107 %V 2