RT Journal Article SR Electronic T1 Correction JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 426 OP 426 DO 10.3122/jabfm.12.5.426b VO 12 IS 5 YR 1999 UL http://www.jabfm.org/content/12/5/426.2.abstract AB