RT Journal Article SR Electronic T1 C. difficile: by the numbers JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1331 OP 1332 DO 10.1503/cmaj.1041694 VO 171 IS 11 A1 Eggertson, Laura YR 2004 UL http://www.cmaj.ca/content/171/11/1331.abstract