PT - JOURNAL ARTICLE ED - , TI - QUERY DP - 2004 Jan 06 TA - Canadian Medical Association Journal PG - 160--160 VI - 170 IP - 1 4099 - http://www.cmaj.ca/content/170/1/160.short 4100 - http://www.cmaj.ca/content/170/1/160.full SO - CMAJ2004 Jan 06; 170