RT Journal Article SR Electronic T1 Correspondence JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 467 OP 467 DO 10.3122/jabfm.16.5.467-a VO 16 IS 5 A1 James C. Puffer YR 2003 UL http://www.jabfm.org/content/16/5/467.2.abstract AB