A Double-Blind Placebo-controlled Trial of Ursodeoxycholic Acid in the Prevention of Gallstones during Weight Loss after Vertical Banded Gastroplasty

One hundred and seven patients whose gallbladder was normal at the time of vertical banded gastroplasty (VBG) were considered for entry into a randomized placebo-controlled double-blind study to determine the effectiveness of ursodeoxycholic acid