TY - STAND AU - J. Delaney AU - S. Daskalopoulou AU - S. Suissa BT - Pharmacoepidemiol Drug Saf DO - 10.1002/pds.1676 M1 - 1 PY - 2009 SP - 1 EP - 6 T2 - Pharmacoepidemiol Drug Saf TI - Traditional versus marginal structural models to estimate the effectiveness of beta-blocker use on mortality after myocardial infarction VL - 18 SN - 1053-8569 ER -