PT - JOURNAL ARTICLE AU - TI - Query AID - 10.1503/cmaj.1041629 DP - 2004 Nov 23 TA - Canadian Medical Association Journal PG - 1420--1420 VI - 171 IP - 11 4099 - http://www.cmaj.ca/content/171/11/1420.short 4100 - http://www.cmaj.ca/content/171/11/1420.full SO - CMAJ2004 Nov 23; 171