1 Maxillofacial Surgery Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Viale San Pietro 10, 07100 Sassari, Italy.
2 Biomedical Science Department, PhD School of Biomedical Science, University of Sassari, Sassari, Italy.
3 COVID-19 Task Force of the Young-Otolaryngologists of the International Federations of Oto-Rhino-Laryngological Societies (YO-IFOS), Paris, France.
4 Department of Human and Experimental Oncology, Faculty of Medicine UMONS Research Institute for Health Sciences and Technology, University of Mons (UMons), Mons, Belgium.
5 Ophthalmology Operative Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy.
6 Neurosurgery Operative Unit, University Hospital of Sassari, Sassari, Italy.