Kenigsberg, David N Cryoablation inside the pulmonary vein after failure of radiofrequency antral isolation. [electronic resource] - Heart rhythm Aug 2007 - 992-6 p. digital Publication Type: Journal Article ISSN: 1547-5271 Standard No.: 10.1016/j.hrthm.2007.04.010 doi Subjects--Topical Terms: AgedAtrial Fibrillation--mortalityCryosurgery--methodsDilatation, PathologicDisease-Free SurvivalElectrocardiographyFemaleHumansMaleMiddle AgedPulmonary Veins--pathologyRetrospective StudiesTreatment Failure