1. Department of Medical Biotechnologies, University of Siena, Siena, Italy
2. Internal Medicine Unit, Careggi University Hospital, Florence, Italy
3. Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
4. Genetic Diagnostic Unit, Florence Careggi University Hospital, Florence, Italy
5. Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
6. Clinical Microbiology and Virology Unit, Florence Careggi University Hospital, Florence, Italy