Walczak, Grażyna Brzezińska-Rajszys i Franciszek Walczak, Jacek Walczak, Maciej, Poznań University of Medical Sciences Cardiac Surgery and Transplantology Department Walczak, Maciej Walczak, Marek Grzybiak i Franciszek Walczak, Marek Konka i Franciszek Walczak, Małgorzata Lodzińska i Franciszek Walczak, ranciszek Walecka, Robert J. Gil i Irena Walecka-Herniczek, Irena Waleron, Krzysztof Waligóra, Marcin Walker, Jonathan, Institute of Cardiovascular Sciences, St. Boniface Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada Walkowicz, Wojciech Wallhagen, Marita, University of Gävle Wallner, Markus Walther, Thomas Waluś-Miarka, Małgorzata Wamberg, Jesper Wan, Tao Wan, Xin-hong Wańczura, Piotr Wańczura, Piotr, Division of Cardiology, Independent Public Health Care Ministry of Internal Affairs, Rzeszow, Poland Wang, Benjamin Wang, Chao-Hung, Heart Failure Research Center, Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Keelung, Chang Gung University College of Medicine, Taoyuan, Taiwan