Medical University of Lublin, Medical University of Lodz, Medical University of Lodz, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Universitätsklinikum Leipzig, Medical University of Lodz, University of Milan, University Hospital Magdeburg, affiliation not provided to SSRN, affiliation not provided to SSRN, Ludwig Maximilian University of Munich (LMU) - Department of Radiation Oncology, affiliation not provided to SSRN, Ludwig Maximilian University of Munich (LMU) - Department of Radiology, University Hospital Magdeburg, affiliation not provided to SSRN and affiliation not provided to SSRN