RT Journal Article SR Electronic T1 Percutaneous transhepatic cholangiography: experience with 54 cases JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 110 OP 116 VO 100 IS 3 A1 Ritchie, G. W. A1 Jackson, D. C. A1 Eaglesham, H. YR 1969 UL http://www.cmaj.ca/content/100/3/110.abstract