1. Department of Otorhinolaryngology, Hospital Obispo Polanco, Teruel, Spain
2. Department of Animal Pathology, Faculty of Veterinary Sciences, University of Zaragoza, Spain
3. Department of Nuclear Medicine, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
4. Department of Otorhinolaryngology, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
5. Department of Medical Oncology, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain