Periprocedural stroke risk in patients undergoing catheter ablation for atrial fibrillation on uninterrupted warfarin. by Page, S, Herring, N, Hunter, R, Withycombe, E, Lovell, M, Wali, G, Betts, T, Bashir, Y, Dhinoja, M, Earley, M, Sporton, S, Rajappan, K, Schilling, R