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Van Gelder IC, Crijns HJ, Tieleman RG, Brugemann J, De Kam PJ, Gosselink AT, Verheugt FW, Lie KI
Chronic atrial fibrillation. Success of serial cardioversion therapy and safety of oral anticoagulation
Arch Intern Med. 1996 Dec 9-23;156(22):2585-92