1. “University Medical Center” Corporate Fund, School of Medicine, Nazarbayev University (NUSOM), Astana 010000, Kazakhstan
2. Department of Otorhinolaryngology, NpJSC “Astana Medical University”, Astana 010000, Kazakhstan
3. Medical Center Hospital of the President’s Affairs Administration of the Republic of Kazakhstan, Astana 010000, Kazakhstan
4. Laryngopharyngeal Reflux Study Group, Young-Otolaryngologists of the International Federations of Oto-Rhino-Laryngological Societies (YO-IFOS), 13005 Paris, France
5. Department of Otolaryngology-Head and Neck Surgery, Foch Hospital, 78180 Paris, France
6. School of Medicine, University Paris Saclay, 91190 Paris, France