nucleation time ( time elapsed until first appearance of cholesterol crystals in incubated bile fluid ) and the lithogenic index were measured on 25 patients ( aged 45.1 +/- 16.8 years ; broca index 106.7 +/- 4.2 % ) with radiolucent gallstones , before receiving daily 500 mg chenodeoxycholic acid and ursodeoxycholic acid orally .
C0008350
gallstones
C0042105
ursodeoxycholic acid