RT Journal Article SR Electronic T1 Practice-based Research Network (PBRN) Engagement: 20+ Years and Counting JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 833 OP 839 DO 10.3122/jabfm.2018.06.180274 VO 31 IS 6 A1 Rhyne, Robert L. A1 Fagnan, Lyle J. YR 2018 UL http://www.jabfm.org/content/31/6/833.abstract AB