Whither the coronary care unit?
D000789:Angina, Unstable / Q000000981:diagnostic imaging / Q000628:therapy; D000800:Angioplasty, Balloon; D002170:Canada; D017023:Coronary Angiography; D003325:Coronary Care Units; D006801:Humans; D009203:Myocardial Infarction / Q000628:therapy