1 The Center for Cancer Prevention and Treatment, Katowice, Poland. Head of the Center: Beata Wydmańska ; Department of Bone Marrow Transplantation and Oncohematology, The Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Gliwice, Poland. Head of the Department: Prof. Sebastian Giebel MD, PhD.
2 The Center for Cancer Prevention and Treatment, Katowice, Poland. Head of the Center: Beata Wydmańska ; Department of Conventional and Intraoperative Radiotherapy, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Gliwice, Poland. Head of the Department: Prof. Leszek Miszczyk MD, PhD.
3 Department of Pathology, Silesian Medical Center, Silesian Medical University, Katowice, Poland. Head of the Department: Krzysztof Januszewski MD, PhD.
4 Great Poland Center of Allergology and Aesthetic Dermatology "Art Clinic", Poznan, Poland. Head of the Center: Paweł Silny MD, PhD.