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 187 OP 187 DO 10.3122/jabfm.12.2.187b VO 12 IS 2 YR 1999 UL http://www.jabfm.org/content/12/2/187.2.abstract AB