Ojdana, Dominika, Department of Microbiological Diagnostics, Medical University of Białystok, Białystok, Poland Ojdana, Dominika, Department of Microbiological Diagnostics and Infectious Immunology, Medical University of Bialystok (Poland) Okinaga, Hiroko Okon, Krzysztof, Department of Pathomorphology, Jagiellonian University, Collegium Medicum, Cracow, Poland Okon, Krzysztof, Uniwersytet Jagielloński, Collegium Medicum (Poland) Oksiuta, M Oktem, Gulperi, Ege University, Faculty of Medicine, Department of Histology and Embryology, Izmir, Turkey Olakowski, Marek, Department of Digestive Tract Surgery, Silesian Medical University, Katowice, Poland Olateju, Oladiran Ibukunolu Olbromski, Mateusz, Department of Histology and Embryology, Wroclaw Medical University, Wroclaw, Poland Olbrych, Katarzyna Olchowik, Grazyna, Departament of Biophysics, Medical University of Lublin, Lublin, Poland Olchowik, Grażyna Olchowik, Grazyna Oldak, T Oldak, Tomasz Olejek, Anita Olejniczak, Karolina Olejniczak-Staruch, Irmina, Uniwersytet Medyczny w Łodzi Olejnik, Igor Olender, Alina Olesińska, Edyta Oleszczuk, J Oleszczuk, Jan Oleszczuk, Jan, Department of Obstetrics and Perinatology, Medical University of Lublin (Poland)