Lelek, Michał Lelonek, Agnieszka Dębska i Małgorzata, Klinika Kardiologii I Katedry Kardiologii i Kardiochirurgii Uniwersytetu Medycznego w Łodzi Lelonek, Małgorzata Lelonek, Małgorzata Lemes, Christine Lemesle, Gilles Lemke, Bernd, Medical Clinic II Cardiology and Angiology Klinikum Lüdenscheid Lüdenscheid Lenarczyk, Anna Lenarczyk, Radosław Lenarczyk, Radosław, I Katedra i Oddział Kliniczny Kardiologii Śląskiej Akademii Medycznej, Śląskie Centrum Chorób Serca w Zabrzu Lenarczyk, Radosław, Department of Cardiology, Congenital Heart Diseases and Electrotherapy, Silesian Medical University, Silesian Center of Heart Diseases (Poland) Lenarczyk, Radosław, Department of Cardiology, Congenital Heart Disease and Electrotherapy, Medical University of Silesia, Silesian Center for Heart Diseases, Zabrze, Poland Lenarczyk, Radosław, Department of Cardiology, Congenital Heart Disease and Electrotherapy, Silesian Medical University, Silesian Centre for Heart Diseases, Zabrze, Lenarczyk, Radosław, Department of Cardiology, Congenital Heart Diseases and Electr otherapy, Silesian Medical University, Silesian Center for Heart Diseases Zabrze Leng, Xiaochang Lennie, Vera Lentini, Salvatore, Clinical and Experimental Department of Medicine and Pharmacology, University of Messina, Italy León-Jiménez, Javier Leone, Antonio Maria, Institute of Cardiology, Catholic University of the Sacred Heart Leone, Antonio Maria (Italy) Leong-Sit, Peter Leopold-Jadczyk, Anna Lepage, Serge Lépori, Augusto J., Cardiology Division, Sanatorio Allende, Córdoba, Argentina Leshem-Rubinow, Eran, TEL AVIV SOURASKY MEDICAL CENTER