RT Journal Article SR Electronic T1 American Board of Family Medicine and Maintenance of Certification for Family Physicians: Second Cohort on Path to 3-Year Extension JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 366 OP 366 DO 10.3122/jabfm.2008.04.080076 VO 21 IS 4 A1 Ireland, Jane YR 2008 UL http://www.jabfm.org/content/21/4/366.abstract AB