TY - JOUR T1 - Do ASA and NSAIDs reduce the risk of colorectal cancer? JF - Canadian Medical Association Journal JO - CMAJ SP - 1159 LP - 1160 DO - 10.1503/cmaj.051335 VL - 173 IS - 10 AU - Sally Murray Y1 - 2005/11/08 UR - http://www.cmaj.ca/content/173/10/1159.abstract ER -