PT - JOURNAL ARTICLE ED - , TI - Query AID - 10.1503/cmaj.051340 DP - 2006 Apr 11 TA - Canadian Medical Association Journal PG - 1224--1224 VI - 174 IP - 8 4099 - http://www.cmaj.ca/content/174/8/1224.short 4100 - http://www.cmaj.ca/content/174/8/1224.full SO - CMAJ2006 Apr 11; 174