1. Smell and Taste Clinic, Department of Otorhinolaryngology, Medical Faculty Carl‐Gustav Carus Technical University of Dresden Dresden Germany
2. Department of Otorhinolaryngology, Head and Neck Surgery Medical University of Vienna Vienna Austria
3. Department of Otorhinolaryngology ENT‐Medicine Cologne (HNO‐Heilkunde Köln) and University Hospitals of Cologne Cologne Germany
4. Norwich Medical School Chancellor's Drive, University of East Anglia Norwich UK
5. The Norfolk Smell and Taste Clinic Norfolk and Waveney ENT Service Waveney UK
6. Institute of Psychology University of Wroclaw Wroclaw Poland