PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1503/cmaj.1041617 DP - 2004 Oct 26 TA - Canadian Medical Association Journal PG - 1025--1025-a VI - 171 IP - 9 4099 - http://www.cmaj.ca/content/171/9/1025.2.short 4100 - http://www.cmaj.ca/content/171/9/1025.2.full SO - CMAJ2004 Oct 26; 171