RT Journal Article SR Electronic T1 Treating C. difficile JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 448 OP 448-a DO 10.1503/cmaj.1041461 VO 172 IS 4 A1 Poutanen, Susan M. A1 Simor, Andrew E. YR 2005 UL http://www.cmaj.ca/content/172/4/448.2.abstract