00566nas a2200205   4500000000100000000000100001008004100002100001500043700001900058700001600077700002000093700002300113700001800136700001600154700002100170245008600191856006700277300001000344490000600354       1993                            d1 aYvonne Lis1 aWalter Spitzer1 aRonald Mann1 aJoy Chukwujindu1 aMargaret Thorogood1 aStephen Evans1 aSamy Suissa1 aJacques Lelorier00aA concurrent cohort study of oral contraceptive users from the VAMP research bank  uhttps://onlinelibrary.wiley.com/doi/abs/10.1002/pds.2630020107  a51-630 v2