1. Smell and Taste Clinic, Department of Otorhinolaryngology University Hospital Dresden Dresden Germany
2. Lyon Neuroscience Research Center French National Centre for Scientific Research, Joint Research Unit and University of Lyon I Lyon France
3. Service of Oral and Maxillofacial Surgery, Department of Surgery University of Geneva Medical School Geneva Switzerland
4. Rhinology–Olfactology Unit, Department of Otorhinolaryngology–Head and Neck Surgery Geneva University Hospitals Geneva Switzerland
5. Department of Otolaryngology–Head and Neck Surgery Monash Health Melbourne Victoria Australia
6. Department of Surgery Monash University Melbourne Victoria Australia
7. Division of Pediatric Otolaryngology University Children's Hospital Zurich Switzerland