1. Dept. of Cancer Immunology, Chair of Oncology, University School of Medical Sciences at GreatPoland Cancer Center, 61866 Poznań, Poland (Institution Affiliated with Protocol)
2. GreatPoland Cancer Center, 61866 Poznań, Poland
3. Institute of Human Genetics, Polish Academy of Sciences, 60476 Poznań, Poland
4. Div. of Cancer Research, Sunnybrook Health Science Centre, University of Toronto, Toronto, Ontario M4N 3M5, Canada
5. Institute of Biochemistry, RWTH Aachen, 5100 Aachen, Germany
6. Section Pathophysiology, I Dep. of Internal Medicine, Johannes Gutenberg University, 55101 Mainz, Germany