Lever, Nigel Levine, Ethan Levine, Ethan, University of Rochester Medical Center, Division of Cardiology, Rochester, New York, USA Levine, Molly B. Levine, Paul A., Department of Electrocardiology, Institute of Cardiology, Collegium Medicum Jagiellonian University, John Paul II Hospital, Cracow, Poland Levitan, Bryana Levy-Lambert, Dina Lewandowski, Maciej, Clinic of Cardiology, Medical University, Szczecin, Poland Lewandowski, Maciej Lewandowski, Michał, National Institute of Cardiology, Warsaw, Poland Lewandowski, Michał Lewandowski, Michał, II Klinika Choroby Wieńcowej Instytutu Kardiologii w Warszawie Lewandowski, Piotr Lewandowski, Zbigniew Lewczuk, Anna Lewczuk, Jerzy Lewczuk, Jerzy, Oddział Kardiologii Wojewódzkiego Szpitala Specjalistycznego we Wrocławiu Lewek, Joanna, Department of Electrocardiology, Sterling Memorial University Hospital, Medical University of Łódź, Poland Lewek, Joanna Lewicka, . Ewa Lewicka, Ewa Lewicka, Ewa, Department of Cardiology and Electrotherapy, Medical University of Gdansk, Poland (Poland) Lewicka, Ewa, Department of Cardiology and Cardiac Electrotherapy, Medical University of Gdansk, Poland Lewicka, Ewa (Poland) Lewicka, Ewa