National and Kapodistrian University of Athens, National and Kapodistrian University of Athens, affiliation not provided to SSRN, National and Kapodistrian University of Athens, - Department of Clinical Therapeutics, National and Kapodistrian University of Athens, affiliation not provided to SSRN, National and Kapodistrian University of Athens, affiliation not provided to SSRN, National and Kapodistrian University of Athens, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, National and Kapodistrian University of Athens, National and Kapodistrian University of Athens - Department of Clinical Therapeutics, National and Kapodistrian University of Athens Medical School - Department of Therapeutics and National and Kapodistrian University of Athens Medical School - Hematology and Oncology Unit