Kopański, Zbigniew, Military Clinical Hospital, Kraków, Poland Koperski, Łukasz, Department of Pathology, Medical University of Warsaw Koperski, Łukasz Koranda, Pavel Korcyl, Grzegorz Korecki, Dariusz Koritko, Sergey Korkmaz, Meliha Korniluk, Jan Korsak, Agnieszka Korzon-Burakowska, Anna Kosatova, Katerina Koseda, Mirosław Koseda-Dragan, Mirosława Kosinska, Malgorzata Kostadinova, Irena Kostecki, Jerzy, Nuclear Medicine Department, Medical University of Bialystok, Poland Kostić, Kosta Kostkiewicz, Magdalena Kostkiewicz, Magdalena (Poland) Kostovska, Elizabeta Srbinovska, University Cardiology Clinic Echocardiography/Noninvasive Imaging Dept University "St Cyril and Methodius" Medical Faculty, Skopje, Macedonia Kotb, Magdy H., Department of Nuclear Medicine, National Cancer Institute, Cairo University, Egypt Kotb, Magdy H., Nuclear Medicine, National Cancer Institute, Cairo University, Egypt Kotrotsios, Tzimis - Dimitrios Koukalová, Renata