00439nas a2200145   4500000000100000000000100001008004100002100001400043700001100057700001400068245017900082300001100261490000700272022001400279       2008                            d1 aM. Weiner1 aD. Xie1 aR. Tannen00aReplication of the Scandinavian Simvastatin Survival Study using a primary care medical record database prompted exploration of a new method to address unmeasured confounding  a661-700 v17  a1053-8569