[1] Univ Foggia, Dept Clin & Expt Med, Via Rovelli 50, I-71122 Foggia, Italy
[2] Univ Salerno, Scuola Med Salernitana, Dept Med Surg & Dent, Via Allende, I-84081 Baronissi, SA, Italy
[3] Univ Verona, ENT Dept, I-37100 Verona, Italy
[4] AOU Policlin Consorziale Bari Osped Giovanni XXII, Clin Pathol Unit, I-70124 Bari, Italy
[5] Univ Udine, Acad Hosp Santa Maria Misericordia, Dept Maxillofacial Surg, I-33100 Udine, Italy
[6] Univ Bari, Univ Hosp Bari, Dept Interdisciplinary Med, Microbiol & Virol Lab, I-70124 Bari, Italy
[7] Sapienza Univ Rome, Dept Dent & Maxillary Facial Sci, I-00185 Rome, Italy
[8] IRCCS Reg Canc Hosp CROB, Referral Canc Ctr Basilicata, Nucl Med Unit, I-85028 Potenza, Italy