RT Journal Article SR Electronic T1 Biliary-tract diagnosis by magnetic resonance imaging JF Canadian Journal of Surgery JO CAN J SURG FD Canadian Medical Association SP 268 OP 268 VO 39 IS 4 A1 James H. Bilbey A1 Nis Schmidt YR 1996 UL http://canjsurg.ca/content/39/4/268.abstract