Wojnar, Andrzej, Lower Silesian Oncology Centre, Wroclaw Wojnar, Andrzej Wojnicz, Romuald, Department of Histology and Embryology, Medical University of Silesia in Katowice, Zabrze, Poland; Wojnicz, Romuald Wojtacha, Pawel Wojtalik, Michal Wojtczak, Agnieszka Wojtczak, Agnieszka Wojtczak, Beata, 1st Department and Clinic of General, Gastroenterological and Endocrine Surgery, Wroclaw Medical University, Wroclaw, Poland Wojtczak, Ewa Wojtkiewicz, Joanna Wojtkiewicz, Joanna Wojtkiewicz, Joanna (Poland) Wójtowicz, Agnieszka Wójtowicz, Krzysztof Wojtukiewicz, M Wojtysiak, Katarzyna Wolczyński, Slawomir Wolczynski, Sławomir Wolinski, Kosma Wolowiec, Dariusz Wolska, Katarzyna Wolski, Jan K., Department of Urology-Oncology, Maria Sklodowska-Curie Memorial Cancer Centre, Warsaw Woroniecka, Renata Worowska, Anna