PT - JOURNAL ARTICLE ED - , TI - Corrections AID - 10.1503/cmaj.051111 DP - 2005 Sep 27 TA - Canadian Medical Association Journal PG - 738--738-a VI - 173 IP - 7 4099 - http://www.cmaj.ca/content/173/7/738.2.short 4100 - http://www.cmaj.ca/content/173/7/738.2.full SO - CMAJ2005 Sep 27; 173