title: The Coronary Drug Project. External quality control programs.
mesh_terms: D002624:Chemistry, Clinical / Q000592:standards; D002986:Clinical Trials as Topic / Q000592:standards*; D003327:Coronary Disease / Q000188:drug therapy* / Q000401:mortality; D004348:Drug Labeling / Q000592:standards; D004562:Electrocardiography / Q000592:standards; D006801:Humans; D007753:Laboratories / Q000592:standards; D008962:Models, Theoretical; D009934:Organization and Administration; D011786:Quality Control; D013223:Statistics as Topic; D014481:United States