Clinical trial methodology.
D000925:Anticoagulants / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D003325:Coronary Care Units; D004992:Ethics, Medical; D006801:Humans; D009203:Myocardial Infarction / Q000628:therapy; D009369:Neoplasms / Q000628:therapy; D011897:Random Allocation; D012107:Research Design; D013223:Statistics as Topic
D000925:Anticoagulants