Efficiency and economy in cardiothoracic surgery: introduction of a self-retaining atrial retractor.
D006348:Cardiac Surgical Procedures / Q000295:instrumentation*; D003365:Costs and Cost Analysis; D004470:Economics, Medical; D006349:Heart Valve Diseases / Q000601:surgery; D006801:Humans; D008171:Lung Diseases / Q000601:surgery; D013525:Surgical Instruments; D013903:Thoracic Surgery; D013909:Thorax / Q000601:surgery*; D000078329:Workforce