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 648 OP 648 DO 10.3122/jabfm.19.6.648 VO 19 IS 6 A1 Smits, Ariel A1 Carney, Patricia A. A1 Smith, Jeanene A1 Saultz, John W. YR 2006 UL http://www.jabfm.org/content/19/6/648.abstract AB