RT Journal Article SR Electronic T1 Diclofenac linked to increased risk of C. difficile JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP cmaj.109-4426 DO 10.1503/cmaj.109-4426 A1 Spitz, Sarah YR 2013 UL http://www.cmaj.ca/content/early/2013/03/11/cmaj.109-4426.abstract AB