PT - JOURNAL ARTICLE ED - , TI - Query AID - 10.1503/cmaj.050637 DP - 2005 Jul 19 TA - Canadian Medical Association Journal PG - 218--218 VI - 173 IP - 2 4099 - http://www.cmaj.ca/content/173/2/218.short 4100 - http://www.cmaj.ca/content/173/2/218.full SO - CMAJ2005 Jul 19; 173