A visit to Puerto Rico.
D000800:Angioplasty, Balloon / Q000706:statistics & numerical data; D006348:Cardiac Surgical Procedures / Q000379:methods; D002309:Cardiology / Q000639:trends*; D001026:Coronary Artery Bypass / Q000401:mortality / Q000706:statistics & numerical data; D004691:Endarterectomy / Q000706:statistics & numerical data; D006801:Humans; D007423:Intra-Aortic Balloon Pumping / Q000401:mortality / Q000706:statistics & numerical data; D011183:Postoperative Complications / Q000453:epidemiology; D011647:Puerto Rico; D012086:Reoperation