History and techniques of heart/lung bypass. Part 1. Why bypass is used, and how it is set up.
D006348:Cardiac Surgical Procedures; D002315:Cardiopulmonary Bypass / Q000266:history; D005112:Extracorporeal Circulation / Q000266:history; D006355:Heart-Lung Machine; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans