Daniel Perez Plasencia
From the Department of Otolaryngology, Insular University Hospital of Gran Canaria, Canary Island, Spain; Hospital Insular de Gran Canaria. Servicio de O.R.L. Avda
Jose MarÌa Cuyas Lazarich
From the Department of Otolaryngology, Insular University Hospital of Gran Canaria, Canary Island, Spain
Angel Ramos Macias
From the Department of Otolaryngology, Insular University Hospital of Gran Canaria, Canary Island, Spain