title: A study of amputations of the lower extremity.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000671:Amputation, Surgical / Q000401:mortality; D000672:Amputation Stumps; D001161:Arteriosclerosis / Q000601:surgery; D002648:Child; D048909:Diabetes Complications; D003920:Diabetes Mellitus / Q000453:epidemiology; D005260:Female; D006493:Heparin / Q000008:administration & dosage; D006801:Humans; D007036:Hypothermia, Induced; D007866:Leg / Q000098:blood supply / Q000601:surgery*; D007871:Leg Ulcer / Q000209:etiology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000209:etiology; D009519:New York City; D011014:Pneumonia / Q000209:etiology; D011183:Postoperative Complications; D011655:Pulmonary Embolism / Q000209:etiology; D013530:Surgical Wound Infection; D014552:Urinary Tract Infections / Q000209:etiology
chemical_list: D006493:Heparin