1. Department of Otorhinolaryngology - Head and Neck Surgery; University of Brescia; Brescia Italy
2. Otolaryngology Unit; Arcispedale Santa Maria Nuova - IRCCS; Reggio Emilia Italy
3. Department of Otorhinolaryngology - Head and Neck Surgery; University “San Raffaele”; Milan Italy
4. Endocrine and Metabolic Unit; University of Brescia; Brescia Italy
5. Department of Nuclear Medicine; University of Brescia; Brescia Italy
6. Pathology Unit; Arcispedale Santa Maria Nuova - IRCCS; Reggio Emilia Italy
7. Department of Otorhinolaryngology - Head and Neck Surgery; Istituto Nazionale dei Tumori “Regina Elena”; Rome Italy