João Simões1, Jorge Miguéis2, António Miguéis2. 1. Department of Ear, Nose and Throat, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal. jofsim@gmail.com. 2. Department of Ear, Nose and Throat, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.