to determine the optimum dose for the medical treatment of gallstones with ursodeoxycholic acid ( u.d.c.a . ) , 11 non-obese patients with radiolucent gallstones were given 5 mg , 10 mg , and 15 mg u.d.c.a . kg body-weight-1 day-1 for 6 weeks each .
C0042105
ursodeoxycholic acid
C0008350
gallstones