RT Journal Article SR Electronic T1 Managing chronic atrial fibrillation JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP S30 OP S33 VO 70 IS 7 suppl 3 A1 Martin, David O. YR 2003 UL http://www.ccjm.org/content/70/7_suppl_3/S30.abstract AB