PT - JOURNAL ARTICLE ED - , TI - Corrections DP - 2003 Jul 22 TA - Canadian Medical Association Journal PG - 105--105-b VI - 169 IP - 2 4099 - http://www.cmaj.ca/content/169/2/105.3.short 4100 - http://www.cmaj.ca/content/169/2/105.3.full SO - CMAJ2003 Jul 22; 169