RT Journal Article SR Electronic T1 Primary Care Practice-Based Research Comes of Age in the United States JF The Annals of Family Medicine JO Ann Fam Med FD American Academy of Family Physicians SP S2 OP S4 DO 10.1370/afm.338 VO 3 IS suppl 1 A1 David Lanier YR 2005 UL http://www.annfammed.org/content/3/suppl_1/S2.abstract AB