RT Journal Article SR Electronic T1 Treating Clostridium difficile infection JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 531 OP 531 DO 10.1503/cmaj.131315 VO 186 IS 7 A1 Daniel M. Shafran A1 Stephen D. Shafran YR 2014 UL http://www.cmaj.ca/content/186/7/531.abstract