The predicament of comparative effectiveness research using observational data.
Jeptha P
JP
Curtis
Harlan M
HM
Krumholz
D054058:Acute Coronary Syndrome / Q000000981:diagnostic imaging / Q000628:therapy; D057186:Comparative Effectiveness Research; D017023:Coronary Angiography; D006801:Humans; D064887:Observational Studies as Topic