PT - JOURNAL ARTICLE AU - Sheri Porter TI - AAFP AND OTHER PRIMARY CARE ASSOCIATIONS RELEASE JOINT PRINCIPLES FOR ACCOUNTABLE CARE ORGANIZATIONS AID - 10.1370/afm.1221 DP - 2011 Jan 01 TA - The Annals of Family Medicine PG - 87--88 VI - 9 IP - 1 4099 - http://www.annfammed.org/content/9/1/87.short 4100 - http://www.annfammed.org/content/9/1/87.full SO - Ann Fam Med2011 Jan 01; 9