PT - JOURNAL ARTICLE ED - , TI - Corrections AID - 10.1503/cmaj.1040384 DP - 2004 Mar 30 TA - Canadian Medical Association Journal PG - 1082--1082-a VI - 170 IP - 7 4099 - http://www.cmaj.ca/content/170/7/1082.2.short 4100 - http://www.cmaj.ca/content/170/7/1082.2.full SO - CMAJ2004 Mar 30; 170