PT - JOURNAL ARTICLE AU - Sandra Dial, MD MSc AU - Samy Suissa, PhD TI - Use administrative databases with caution AID - 10.1503/cmaj.1080125 DP - 2009 Jan 06 TA - Canadian Medical Association Journal PG - 78--79 VI - 180 IP - 1 4099 - http://www.cmaj.ca/content/180/1/78.2.short 4100 - http://www.cmaj.ca/content/180/1/78.2.full SO - CMAJ2009 Jan 06; 180