Zinka, Elżbieta Ziółkowska, Lidia, Department of Paediatric Cardiology, The Children’s Memorial Health Institute, Warsaw, Poland Ziółkowska, Lidia, The Children’s Memorial Health Institute Ziółkowska, Lidia Ziółkowska, Lidia Ziółkowska, Małgorzata Ziółkowska−Graca, Bożena Ziołkowski, Michał Ziółkowski, Piotr Zioło, Jerzy Zito, Concetta Zivelonghi, Carlo Žižek, David Žižek, David Zlahoda-Huzior, Adriana Zlatancheva, Galina Zlatareva, Dora Zlibut, Alexandru Żmijewski, Piotr Żmuda, Witold, CSK Żmuda, Witold Żmuda, Witold Żmudka, Krzysztof, John Paul II Hospital Żmudka, Krzysztof, Department of Interventional Cardiology, Jagiellonian University Medical College, Krakow, Poland Żmudka, Krzysztof, Department of Haemodynamics and Angiocardiography, Institute of Cardiology, Jagiellonian University Medical College, John Paul II Hospital, Krakow, Poland