1. Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology; Department of Medical Physics; Wybrzeże Armii Krajowej 15; 44-101; Gliwice; Poland
2. Silesian Medical University; Child Neurology Department; Medyków 16; 40-752; Katowice; Poland
3. Helimed Diagnostic Imaging; Panewnicka 65; 40-752; Katowice; Poland