Combining Aspirin With Oral Anticoagulant Therapy: Is This a Safe and Effective Practice in Patients With Atrial Fibrillation?
Stroke 38:1652-1654, Gorelick,P.B., 2007
Stroke Prevention with the Oral Direct Thrombin Inhibitor Ximelagatran Compared with Warfarin in Patients with Non-Valvular Atrial Fibrillation (SPORTIF III): Randomised Controlled Trial
Lancet 362:1691-1698,1686, Executive Steering Committee on Behalf of the SPOR, 2003