Affiliation: | 1. Upper Airways Research Laboratory, Department of Otorhinolaryngology, Ghent University, , Ghent, Belgium;2. Department of Otorhinolaryngology, Federal University of S?o Paulo, , Brazil;3. Department of Medicine, Jagiellonian University School of Medicine, , Cracow, Poland;4. Medex, Bielsko‐Biala, , Poland |