How to succeed in failing without really trying.
D006328:Cardiac Catheterization; D002302:Cardiac Output; D006348:Cardiac Surgical Procedures / Q000266:history; D049673:History, 20th Century; D006801:Humans; D006973:Hypertension / Q000266:history; D008511:Medicine; D010100:Oxygen / Q000266:history; D010406:Penicillins / Q000266:history; D011051:Poliomyelitis / Q000266:history; D012106:Research; D012121:Respiration, Artificial
D010406:Penicillins; D010100:Oxygen