Waagstein, Finn, Sahlgrenska University, Göteborg, Sweden Wabich, Elżbieta, Department of Cardiology and Cardiac Electrotherapy, Medical University of Gdansk, Poland Wabich, Elżbieta (Poland) Wachnicka-Truty, Renata Wachowiak-Baszyńska, Hanna Wachowiak-Baszyńska, Małgorzata Pyda i Hanna Wachtl, Jerzy Waciński, Piotr, Department of Cardiology, Lublin Medical University, Lublin, Poland Waciński, Piotr Waciński, Tomasz Zapolski i Piotr Wada, Hiroshi Wada, Naotoshi Wafa, Samir Wahab, Abdul Waintraub, Xavier Waksman, Ron Walczak, Andrzej Walczak, dward Koźluk i Franciszek Walczak, Ewa Walczak, Ewa Bujnowska i Franciszek Walczak, Franciszek Walczak, Grażyna Brzezińska-Rajszys i Franciszek Walczak, Jacek Walczak, Maciej, Poznań University of Medical Sciences Cardiac Surgery and Transplantology Department Walczak, Maciej