1. Division of Toxicology, Department of Forensic Sciences, Pathology, Gynecology and Obstetrics, and Pediatrics, Veterinary School, Universidade de Santiago de Compostela, Lugo, Spain
2. Department of Otorhinolaryngology, Complexo Hospitalario Universitario Lucus Augusti, Lugo, Spain
3. Division of Neurotology, Department of Otorhinolaryngology, Complexo Hospitalario Universitario de Santiago de Compostela, Department of Surgery and Medical-Surgical Specialities, Universidade de Santiago de Compostela, Santiago de Compostela, Spain