RT Journal Article SR Electronic T1 AAFP AND OTHER PRIMARY CARE ASSOCIATIONS RELEASE JOINT PRINCIPLES FOR ACCOUNTABLE CARE ORGANIZATIONS JF The Annals of Family Medicine JO Ann Fam Med FD American Academy of Family Physicians SP 87 OP 88 DO 10.1370/afm.1221 VO 9 IS 1 A1 Sheri Porter YR 2011 UL http://www.annfammed.org/content/9/1/87.abstract AB