1. Joanna Socha, MD, PhD, Department of Radiotherapy, Military Institute of Medicine, Warsaw, Poland, Department of Radiotherapy, Regional Oncology Centre, Czestochowa, Poland; Agnieszka Żółciak-Siwińska, MD, PhD, Department of Gynecological Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland; and Krzysztof Bujko, MD, PhD, Department of Radiotherapy I, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland