1. Department of Oral and Maxillofacial Surgery; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain
2. Department of Otolaryngology; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain
3. Instituto Universitario de Oncología del Principado de Asturias (IUOPA); University of Oviedo; Oviedo Asturias Spain
4. Department of Biochemistry; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain