1. Military Institute of Medicine, Warsaw, Poland
2. Holdings, South San Francisco, CA, USA
3. Białystok Oncology Center, Białystok, Poland
4. Oncology Center, Zielona Góra, Poland
5. Opole Oncology Center, Opole, Poland
6. Masaryk Memorial Cancer Institute, Brno, Czech Republic
7. Warmia and Masuria Oncology Center, Olsztyn, Poland
8. Medical University of Gdańsk, Gdańsk, Poland
9. National Institute of Oncology, Budapest, Hungary
10. Regional Hospital, Wrocław, Poland
11. Medical University of Łódź, Łódź, Poland
12. Oncology Center, Kielce, Poland
13. Oncology Institute, Kraków, Poland