[A multicenter cooperative study on prevention and treatment of unstable angina associated with acute myocardial infarction and cardiac death].
D000368:Aged; D000721:Ancrod / Q000627:therapeutic use*; D000789:Angina, Unstable / Q000188:drug therapy*; D016757:Death, Sudden, Cardiac / Q000517:prevention & control*; D005260:Female; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000517:prevention & control*; D016037:Single-Blind Method
D006493:Heparin; D000721:Ancrod