Benefits and hazards of laparotomy for medical patients.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001706:Biopsy; D003949:Diagnostic Techniques, Surgical; D005260:Female; D005500:Follow-Up Studies; D005767:Gastrointestinal Diseases / Q000175:diagnosis; D006801:Humans; D007813:Laparotomy / Q000009:adverse effects / Q000401:mortality; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000175:diagnosis; D011183:Postoperative Complications; D012737:Sex Factors