PT - JOURNAL ARTICLE ED - , TI - Query AID - 10.1503/cmaj.050841 DP - 2006 May 23 TA - Canadian Medical Association Journal PG - 1678--1678 VI - 174 IP - 11 4099 - http://www.cmaj.ca/content/174/11/1678.short 4100 - http://www.cmaj.ca/content/174/11/1678.full SO - CMAJ2006 May 23; 174