PT - JOURNAL ARTICLE AU - Carol P. Herbert TI - Physicians and advocacy AID - 10.1503/cmaj.1050142 DP - 2005 Sep 13 TA - Canadian Medical Association Journal PG - 578--578-a VI - 173 IP - 6 4099 - http://www.cmaj.ca/content/173/6/578.2.short 4100 - http://www.cmaj.ca/content/173/6/578.2.full SO - CMAJ2005 Sep 13; 173