1 Department of Otorhinolaryngology, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil; Department of Neurology, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil. Electronic address: [email protected].
2 Department of Neurology, Yerevan State Medical University, Yerevan, Armenia.
3 Department of Otolaryngology, University College London, London, UK.
4 Department of Radiology, University College London, London, UK.
5 Department of Neurology, University College London, London, UK.