1 Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
2 Department of Emergency Radiology, Careggi University Hospital, Florence, Italy.
3 Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy.
4 Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy; Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy.
5 Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy. Electronic address: mencarinij@aou-careggi.toscana.it.