RT Journal Article SR Electronic T1 Soft-tissue images. Choledochal cyst with virtual dochoscopy JF Canadian Journal of Surgery JO CAN J SURG FD Canadian Medical Association SP 409 OP 410 VO 42 IS 6 A1 Pari Tiwari A1 Robert Ens A1 Nis Schmidt YR 1999 UL http://canjsurg.ca/content/42/6/409.abstract