1. Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
2. Institute of Life Sciences, Sant'Anna School of Advanced Studies, Pisa, Italy
3. Thoracic Endoscopy Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
4. Division of Thoracic Surgery, Cardiac and Thoracic Department, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
5. Otolaryngology, Audiology and Phoniatric Operative Unit, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, Azienda Ospedaliero-Universitaria Pisana (AOUP), University of Pisa, Italy
6. Department of Anaesthesia and Critical Care, Cardiothoracic and Vascular Anaesthesia and Intensive Care Medicine, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy