RT Journal Article SR Electronic T1 Guest Family Physician Commentaries JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 352 OP 352 DO 10.3122/jabfm.2009.04.090108 VO 22 IS 4 A1 Calvert, James F. YR 2009 UL http://www.jabfm.org/content/22/4/352.abstract AB