Improving procedural and one-year outcome after contact force-guided pulmonary vein isolation: the role of interlesion distance, ablation index, and contact force variability in the ‘CLOSE’-protocol - Phlips, Thomas; Taghji, Philippe; El Haddad, Milad; Wolf, Michael; Knecht, Sébastien; Vandekerckhove, Yves; Tavernier, René; Duytschaever, Mattias (Europace (London, England), 2018)