Cholecystectomy without drainage.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002763:Cholecystectomy; D004322:Drainage / Q000009:adverse effects*; D005260:Female; D005334:Fever / Q000209:etiology; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D011182:Postoperative Care; D011183:Postoperative Complications / Q000517:prevention & control; D001261:Pulmonary Atelectasis / Q000150:complications; D012189:Retrospective Studies; D012737:Sex Factors; D013530:Surgical Wound Infection