PT - JOURNAL ARTICLE ED - , TI - Article link AID - 10.1503/cmaj.112-2039 DP - 2012 Apr 17 TA - Canadian Medical Association Journal PG - 792--792 VI - 184 IP - 7 4099 - http://www.cmaj.ca/content/184/7/792.short 4100 - http://www.cmaj.ca/content/184/7/792.full SO - CMAJ2012 Apr 17; 184