RT Journal Article SR Electronic T1 Licensure versus Certification JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 287 OP 288 DO 10.3122/jabfm.2.4.287 VO 2 IS 4 A1 Young, Paul R. YR 1989 UL http://www.jabfm.org/content/2/4/287.abstract AB