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The use of perioperative antibiotic prophylaxis in the treatment of acute cholecystitis, a randomized, multicenter, non-inferiority trial

To provide high level of evidence that omitting perioperative antibiotic prophylaxis does not increase the postoperative infection rate, in patients with acute calculous cholecystitis undergoing laparoscopic cholecystectomy.

Ursodeoxycholic acid for the prevention of symptomatic gallstone disease after Roux-en-Y Gastric Bypass and Sleeve Gastrectomy.

This study is designed to provide evidence regarding the prophylactic use of UDCA in preventing symptomatic gallstone disease after RYGB and Sleeve Gastrectomy.