RT Journal Article SR Electronic T1 Board News JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 523 OP 523 DO 10.3122/jabfm.6.5.523 VO 6 IS 5 A1 Young, Paul R. YR 1993 UL http://www.jabfm.org/content/6/5/523.abstract AB