%0 Journal Article %A Sandra Dial, MD MSc %A Samy Suissa, PhD %T Use administrative databases with caution %D 2009 %R 10.1503/cmaj.1080125 %J Canadian Medical Association Journal %P 78-79 %V 180 %N 1 %U https://www.cmaj.ca/content/cmaj/180/1/78.2.full.pdf