Old people and surgery.
Keating
H J
HJ
D000006:Abdomen, Acute / Q000601:surgery; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D010439:Peptic Ulcer Perforation / Q000601:surgery; D011182:Postoperative Care; D011300:Preoperative Care; D012307:Risk Factors; D013276:Stomach Ulcer / Q000150:complications; D013514:Surgical Procedures, Operative