PT - JOURNAL ARTICLE AU - , TI - Corrections AID - 10.1503/cmaj.050189 DP - 2005 Mar 15 TA - Canadian Medical Association Journal PG - 730--730-b VI - 172 IP - 6 4099 - http://www.cmaj.ca/content/172/6/730.3.short 4100 - http://www.cmaj.ca/content/172/6/730.3.full SO - CMAJ2005 Mar 15; 172