RT Journal Article SR Electronic T1 UPDATE ON THE P4 PROJECT JF The Annals of Family Medicine JO Ann Fam Med FD American Academy of Family Physicians SP 86 OP 86 DO 10.1370/afm.808 VO 6 IS 1 A1 Larry Green YR 2008 UL http://www.annfammed.org/content/6/1/86.1.abstract AB