1 Nuclear Medicine Unit, Department of Oncohaematology, Policlinico "Tor Vergata", Rome, Italy.
2 Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, Rome 00133, Italy; San Raffaele University, Via di Val Cannuta 247, 00166, Rome, RM, Italy; Saint Camillus International University of Health Sciences, Via di Sant'Alessandro, 8, 00131 Rome, RM, Italy. Electronic address: manuel.scimeca@uniroma2.it.
3 Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, Rome 00133, Italy.
4 Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, Rome 00133, Italy; IRCCS Neuromed, Via Atinense, 18, 8607 Pozzilli, IS, Italy.