1. a National University of Athens, Medical School, Athens, Greece
2. b Department of Medical Oncology, Athens Medical Center, Athens, Greece
3. c 1st Department of Oncology, Metropolitan Hospital, Athens, Greece
4. d Department of Mathematics, National University of Athens, Athens, Greece
5. e Department of Medical Oncology, “Papageorgiou” Hospital, Aristotle University of Thessaloniki School of Medicine, Thessaloniki, Greece
6. f Department of Molecular Biology and Genetics, Metropolitan Hospital, Athens, Greece