PT - JOURNAL ARTICLE AU - C P Herbert TI - The fifth principle. Family physicians as advocates. DP - 2001 Dec 01 TA - Canadian Family Physician PG - 2441--2443 VI - 47 IP - 12 4099 - http://www.cfp.ca/content/47/12/2441.short 4100 - http://www.cfp.ca/content/47/12/2441.full SO - Can Fam Physician2001 Dec 01; 47