Affiliation: | (1) Department of Radiotherapy, Center of Oncology Maria Skłodowska Curie Memorial Institute-Branch, Wybrzeże Armii Krajowej 14, 44-101 Gliwice, Poland;(2) Department of Paediatic Oncology Organization Medical University, Center of Oncology Maria Skłodowska Curie Memorial Institute-Branch, 3 Maja 15, 41-800 zabrze, Poland |