the same quantities were estimated in 16 additional patients with gallstones given chenodeoxycholic ( cdca ) or ursodeoxycholic acid ( udca ) at a dose of 15 mg/kg per day in order to investigate the comparative effect of a short term ( 7 days ) administration of the two bile acids on the hepatic sterol metabolism .
C0008350
gallstones
C0042105
ursodeoxycholic acid