RT Journal Article SR Electronic T1 Cardiology: Clinical Medicine Series JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 511 OP 511 DO 10.3122/jabfm.12.6.511b VO 12 IS 6 A1 Dickson, Ralph W. YR 1999 UL http://www.jabfm.org/content/12/6/511.2.abstract AB