Niedzielski, Jerzy, Clinic of Paediatric Surgery and Urology, Medical University of Lodz Niedziolko-Bagniuk, Karolina Niekraś, Lidia Nielsen, John E., Copenhagen University Hospital (Rigshospitalet) 9 Blegdamsvej DK-2100 Copenhagen Niemcunowicz-Janica, Anna, Department of Forensic Medicine, Medical University of Bialystok, Poland Niemcunowicz-Janica, Anna Niemiec, Joanna, Laboratory of Radiation Biology, Centre of Oncology, Cracow, Poland Niemiec, Krzysztof T Niemiec, Lukasz Nienartowicz, Ewa Nieruchalska, Edyta Niewegłowski, H Niewiadomy, Andrzej Niewiara, Łukasz, Department of Dermatology, Jagiellonian University Medical College, Krakow Niewiarowska, Katarzyna, Medical University of Bialystok Niklińska, Wieslawa Niklinska, Wieslawa, Department of Histology and Embriology, Medical University of Bialystok, Poland Niklińska, Wiesława Niklińska, Wiesława Ewa Nikliński, Jacek Nikliński, Jacek, Center of Experimental Medicine, Medical University of Bialystok (Poland) Niklinski, Jacek Nikolajuk, Agnieszka Nikolajuk, Agnieszkar Nikolov, Boycho