PT - JOURNAL ARTICLE AU - Natalie McGill TI - Member Groups in Brief DP - 2015 Oct 01 TA - The Nation's Health PG - 17--17 VI - 45 IP - 8 4099 - http://www.thenationshealth.org/content/45/8/17.2.short 4100 - http://www.thenationshealth.org/content/45/8/17.2.full SO - Nations Health2015 Oct 01; 45