Quality of Anticoagulation Control in Atrial Fibrillation
Lancet 376:935-937, Lane,D.A. &Lip,G.Y.H., 2010
Potentially Preventable Strokes in High-Risk Patients with Atrial Fibrillation Who Are Not Adequately Anticoagulated
Stroke 40:235-240,5, Gladstone,D.J.,et al, 2009