A prospective randomized comparison of laparoscopic appendectomy with open appendectomy: clinical and economic analyses.
Is a dissection balloon beneficial in totally extraperitoneal endoscopic hernioplasty (TEP)? A randomized prospective multicenter study
Randomized trial of choledochocholedochostomy with or without a T tube in orthotopic liver transplantation
Transjugular intrahepatic portosystemic shunt (TIPS) versus endoscopic variceal ligation in the prevention of variceal rebleeding in patients with cirrhosis: a randomised trial
A comparison of nebulized budesonide, intramuscular dexamethasone, and placebo for moderately severe croup