1. Department of Radiotherapy, Center of Oncology, Bydgoszcz, Poland and Department of Clinical Biochemistry, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
2. Department of Tumor Pathology and Pathomorphology, Franciszek Lukaszczyk Oncology Center, The Ludwik Rydygier Collegium Medicum UMK, Bydgoszcz, Poland
3. Department of Radiotherapy, Center of Oncology, Bydgoszcz, Poland
4. Department of Radiation Oncology, Center of Oncology – Maria Sklodowska-Curie Memorial Institute, Cracow, Poland
5. Department of Clinical Biochemistry, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland