Gruchała, Marcin, Department of Cardiology, Medical University of Gdansk Gruchała, Marcin Gruchała, Marcin Gruczek, Justyna Gruda, Jacek, Klinika Kardiochirurgii I Katedry Kardiologii i Kardiochirurgii Uniwersytetu Medycznego w Łodzi Grudzka, Katarzyna Gruenig, Ekkehard, Centre for Pulmonary Hypertension at Thoraxclinic Heidelberg, Amalienstr. 5, 69126 Heidelberg Gruner, Christiane, University Heart Center, University Hospital Zurich Gruner, Christiane Gruszczynska, Katarzyna Gruszka, Agata Gruszka, Krystian Grycewicz, Joanna Grycewicz, Tomasz Grydz, Łukasz, Department of Cardiology, Multidisciplinary District’s Hospital, Now Sól, Poland Grygier, Marek Grygier, Marek, I Klinika Kardiologii Katedry Kardiologii Akademii Medycznej im. Karola Marcinkowskiego w Poznaniu Grygier, Marek, Chair and 1st Department of Cardiology, Poznań University of Medical Sciences, Poznań, Poland Grygier, Marek Grygier, Marek, 1st Department of Cardiology, Poznan University of Medical Sciences (Poland) Grygier, Marek Gryglewska, Barbara, Department of Internal Medicine and Gerontology, Medical College, Jagiellonian University, Cracow, Poland Gryglewska, Barbara Grygorowicz, Tomasz Grymuza, Maciej