RT Journal Article SR Electronic T1 Research Letter JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 526 OP 527 DO 10.3122/jabfm.19.5.526 VO 19 IS 5 A1 Lesser, Lenard I. YR 2006 UL http://www.jabfm.org/content/19/5/526.abstract AB