PT - JOURNAL ARTICLE ED - , TI - Query AID - 10.1503/cmaj.061005 DP - 2007 Apr 24 TA - Canadian Medical Association Journal PG - 1380--1380 VI - 176 IP - 9 4099 - http://www.cmaj.ca/content/176/9/1380.short 4100 - http://www.cmaj.ca/content/176/9/1380.full SO - CMAJ2007 Apr 24; 176