Letter: Controlled study of coronary-artery surgery.
D002986:Clinical Trials as Topic; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000150:complications / Q000601:surgery; D048909:Diabetes Complications; D005260:Female; D006801:Humans; D009765:Obesity / Q000150:complications; D012907:Smoking / Q000150:complications