1. Department of Clinical and Experimental Medicine, University of Foggia, Clinica Odontoiatrica Via Rovelli 50, Foggia 71122, Italy
2. Department of Otolaryngology Head and Neck Surgery, San Bassiano Hospital, Via Dei Lotti 40, Bassano Del Grappa (VI) 36061, Italy
3. Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, V.le S.Salvatore, L’Aquila 67100, Italy