Hirnle, Piotr Hirnle, Tomasz Hiro, Takafumi, Nihon Univesrsity Hita, Alejandro, Cardiology Institute, Hospital Universitario Austral, Pilar, Buenos Aires, Argentina Hlawaty, Marta Hlawaty, Marta (Poland) Ho, Jamie S. Ho, Tsung-Jung, School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 40402 Hobbs, Richard Hochuł, Mariusz Hoefen, Ryan Hoefen, Ryan J., University of Rochester, USA Hoeltgen, Reinhard, Klinikum Westmünsterland, St. Agnes-Hospital Bocholt Rhede, Medical Clinic 1 – Cardiology/Electrophysiology, Barloer Weg 125, 46397 Bocholt Hofer, Daniel Hofer, Daniel Höfer, Stefan, Department of Medical Psychology, Innsbruck Medical University, Innsbruck, Austria Hoffman, Adam Witkowski i Piotr Hoffman, Elżbieta Włodarska i Piotr Hoffman, Hanna Siudalska i Piotr Hoffman, Hanna Szwed i Piotr Hoffman, Jan Tylka i Piotr Hoffman, Krzysztof Kraszewski i Piotr, Klinika Wad Wrodzonych Serca Instytutu Kardiologii w Warszawie Hoffman, Piotr, Department of Congenital Heart Diseases, Institute of Cardiology, Warsaw, Poland Hoffman, Piotr Hoffman, Piotr, Department of Congenital Heart Diseases, Institute of Car diology Warsaw (Poland)