TY - JOUR T1 - AAFP AND OTHER PRIMARY CARE ASSOCIATIONS RELEASE JOINT PRINCIPLES FOR ACCOUNTABLE CARE ORGANIZATIONS JF - The Annals of Family Medicine JO - Ann Fam Med SP - 87 LP - 88 DO - 10.1370/afm.1221 VL - 9 IS - 1 AU - Sheri Porter Y1 - 2011/01/01 UR - http://www.annfammed.org/content/9/1/87.abstract N2 - ER -