PT - JOURNAL ARTICLE ED - , TI - Query AID - 10.1503/cmaj.050573 DP - 2006 Mar 14 TA - Canadian Medical Association Journal PG - 892--892 VI - 174 IP - 6 4099 - http://www.cmaj.ca/content/174/6/892.short 4100 - http://www.cmaj.ca/content/174/6/892.full SO - CMAJ2006 Mar 14; 174