Lenarczyk, Radosław, Medical University of Silesia, Silesian Center for Heart Diseases Lenarczyk, Radosław, Department of Cardiology, Congenital Heart Diseases and Electrotherapy Lenarczyk, Radosław, Department of Cardiology, Congenital Heart Diseases, and Electrotherapy Silesian Medical University, Silesian Center of Heart Diseases, Zabrze, Poland Lenarczyk, Radosław, Clinical Department of Cardiology Chair of Cardiology, Congenital Heart Diseases and Electrotherapy Medical University of Silesia Lenarczyk, Radosław, Department of Cardiology, Congenital Heart Disease and Electrotherapy, Silesian Medical University, Silesian Centre for Heart Diseases (Poland) Lenarczyk, Radosław Lenarczyk, Radosław Lenarczyk, Radosław Lenarczyk, Radosław (Poland) Lenard, Bogusław Lenart-Migdalska, Aleksandra Lenartowska, Lucyna, Wojewódzki Szpital Specjalistyczny Ośrodek Badawczo Rozwojowy Lenartowska, Lucyna Lenihan, Daniel J. Lenihan, Daniel Lennerz, Carsten Lennerz, Carsten Lenzen, Mattie J. Leon, Hernan Diaz de León Jiménez, Javier, University Hospital Juan Ramón Jiménez, Huelva, Spain Leone, Attilio Leosdottir, Margret Lepetit, Anne Leport, Catherine Lerch, René