PT - JOURNAL ARTICLE AU - TI - Corrections AID - 10.1503/cmaj.1041750 DP - 2005 Jan 04 TA - Canadian Medical Association Journal PG - 19--19-b VI - 172 IP - 1 4099 - http://www.cmaj.ca/content/172/1/19.3.short 4100 - http://www.cmaj.ca/content/172/1/19.3.full SO - CMAJ2005 Jan 04; 172