RT Journal Article SR Electronic T1 Reducing Stroke Risk in Atrial Fibrillation Patients JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 203 OP 204 VO 58 IS 3 A2 William S. Wilke A1 David Sherman YR 1991 UL http://www.ccjm.org/content/58/3/203.abstract AB