Oncology Institute of Southern Switzerland - Clinic of Haematology, Oncology Institute of Southern Switzerland - Clinic of Haematology, University of Basel - Service of Haematology, Ente Ospedaliero Cantonale - Division of Infectious Diseases, Regional Hospital Lugano - Division of Infectious Diseases, Ente Ospedaliero Cantonale - Department of Internal Medicine, Ente Ospedaliero Cantonale - Department of Intensive Care Medicine, Università della Svizzera Italiana - Biomedical Faculty, Ente Ospedaliero Cantonale - Institute of Laboratory Medicine, Oncology Institute of Southern Switzerland - Clinic of Haematology, Ente Ospedaliero Cantonale - Institute of Laboratory Medicine, Oncology Institute of Southern Switzerland - Clinic of Haematology, Oncology Institute of Southern Switzerland - Clinic of Haematology and Oncology Institute of Southern Switzerland - Clinic of Haematology