Affiliation: | aDepartment of Otorhinolaryngology and Head Neck Surgery, Gabriel Montpied Teaching Hospital Network, University of Clermont 1, rue Montalembert, F-63000 Clermont-Ferrand, France bDepartment of Neurosurgery, Gabriel Montpied Teaching Hospital Network, University of Clermont 1, rue Montalembert, F-63000 Clermont-Ferrand, France cDepartment of Neuroradiology, Gabriel Montpied Teaching Hospital Network, University of Clermont 1, rue Montalembert, F-63000 Clermont-Ferrand, France |