PT - JOURNAL ARTICLE ED - , TI - Query AID - 10.1503/cmaj.050280 DP - 2006 Jul 04 TA - Canadian Medical Association Journal PG - 120--120 VI - 175 IP - 1 4099 - http://www.cmaj.ca/content/175/1/120.short 4100 - http://www.cmaj.ca/content/175/1/120.full SO - CMAJ2006 Jul 04; 175