PT - JOURNAL ARTICLE ED - , TI - Query AID - 10.1503/cmaj.070104 DP - 2007 Jun 05 TA - Canadian Medical Association Journal PG - 1792--1792 VI - 176 IP - 12 4099 - http://www.cmaj.ca/content/176/12/1792.short 4100 - http://www.cmaj.ca/content/176/12/1792.full SO - CMAJ2007 Jun 05; 176