PT - JOURNAL ARTICLE AU - Ariella Lang AU - Nancy Edwards TI - Perils of systematic reviews AID - 10.1503/cmaj.1041715 DP - 2005 Mar 29 TA - Canadian Medical Association Journal PG - 855--855 VI - 172 IP - 7 4099 - http://www.cmaj.ca/content/172/7/855.1.short 4100 - http://www.cmaj.ca/content/172/7/855.1.full SO - CMAJ2005 Mar 29; 172