Lehmann-Kopydłowska, Agata Lehmkuhl, Hans Lehmkuhl, Hans Lehmkuhl, Hans Brendan Lehner, Anja, Department of Pediatric Cardiology, University Hospital Munich (LMU) Lei, Lei Lei, Licheng, Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University. Lei, Sen Leidi, Cristina Leidi, Cristina Leischik, Roman, Head of the Section Prevention and Sports Medicine, Department of Cardiology, Witten/Herdecke University, Faculty of Health, School of Medicine, Hagen, Germany Lejawa, Mateusz Lejko, Anna, Department of Cardiac Surgery, Medical University of Bialystok, Poland Lekakis, John Lekston, Andrzej Lekston, Andrzej, Śląskie Centrum Chorób Serca w Zabrzu (Poland) Lekston, Andrzej, Third Department of Cardiology, Medical University of Silesia, Silesian Centre for Heart Diseases, Zabrze, Poland Lekston, Andrzej, 3rd Department of Cardiology, SMDZ in Zabrze, Medical University of Silesia, Katowice, Poland Lekston, Andrzej, Silesian Center for Heart Diseases (SCHD), Zabrze, Poland Lekston, Andrzej Lekston, Andrzej Lekston, Andrzej Lelakowska, Maria Lelakowska-Pieła, Maria, The John Paul II Hospital in Cracow. Lelakowski, Jacek, Klinika Elektrokardiologii, Instytut Kardiologii Collegium Medicum UJ, Szpital im. Jana Pawła II