1. OtoLab; Department of Surgical, Medical, Molecular Pathology and Emergency Medicine; University of Pisa; via Paradisa 2 56124 Pisa Italy
2. Department of Clinical and Experimental Medicine; University of Pisa; via Savi 10 56126 Pisa Italy
3. Department of Civil and Industrial Engineering; University of Pisa; Largo L. Lazzarino 2 56122 Pisa Italy
4. Institute of Ecosystem Study (ISE); National Research Council (CNR); via G. Moruzzi 1 56124 Pisa Italy