1. Hematology and Bone Marrow Transplantation Unit, AOUC Policlinico, Bari, Italy
2. Department of Emergency and Organ Transplantation, “Aldo Moro” University School of Medicine, Bari, Italy
3. Department of Clinical Patology, AOUC Policlinico, Bari, Italy
4. Hygiene Unit, AOUC Policlinico, Bari, Italy
5. Department of Biomedical Sciences and Human Oncology, “Aldo Moro” University School of Medicine, Bari, Italy