%0 Generic %B Pharmacoepidemiol Drug Saf %D 2008 %P 671-85 %R 10.1002/pds.1584 %T Replicated studies of two randomized trials of angiotensin-converting enzyme inhibitors: further empiric validation of the \textquoterightprior event rate ratio\textquoteright to adjust for unmeasured confounding by indication %V 17