RT Journal Article SR Electronic T1 Biliary obstruction caused by the liver fluke, Fasciola hepatica JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 524 OP 526 DO 10.1503/cmaj.150696 VO 188 IS 7 A1 Takuya Ishikawa A1 Vanessa Meier-Stephenson A1 Steven J. Heitman YR 2016 UL http://www.cmaj.ca/content/188/7/524.abstract