1. Otorhinolaryngology Resident at the Department of Otorhinolaryngology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
2. Laryngology Fellowship at the Department of Otorhinolaryngology, Faculty of Medical Sciences, UNICAMP, Campinas, Brazil
3. Otolaryngologist at the Department of Otorhinolaryngology, Faculty of Medical Sciences, UNICAMP, Campinas, Brazil
4. Head of Laryngology Service and Head of Department of Otorhinolaryngology, Faculty of Medical Sciences, UNICAMP, Campinas, Brazil