PT - JOURNAL ARTICLE AU - Robert L. Rhyne AU - Lyle J. Fagnan TI - Practice-based Research Network (PBRN) Engagement: 20+ Years and Counting AID - 10.3122/jabfm.2018.06.180274 DP - 2018 Nov 01 TA - The Journal of the American Board of Family Medicine PG - 833--839 VI - 31 IP - 6 4099 - http://www.jabfm.org/content/31/6/833.short 4100 - http://www.jabfm.org/content/31/6/833.full SO - J Am Board Fam Med2018 Nov 01; 31