RT Journal Article SR Electronic T1 C. difficile may have killed 2000 in Quebec: study JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1020 OP 1021 DO 10.1503/cmaj.051226 VO 173 IS 9 A1 Laura Eggertson YR 2005 UL http://www.cmaj.ca/content/173/9/1020.abstract