[1] Clin Univ St Luc, Dept Otorhinolaryngol, Brussels, Belgium
[2] Catholic Univ Louvain, Inst Neurosci, Brussels, Belgium
[3] Norfolk & Waveney ENT Serv, Norfolk Smell & Taste Clin, Gorleston, England
[4] Univ East Anglia, Norwich Med Sch, Norwich, Norfolk, England
[5] Biruni Univ, Dept Otorhinolaryngol, Istanbul, Turkey
[6] Reg Hosp West Jutland, Dept Otorhinolaryngol, Flavour Clin, Holstebro, Denmark
[7] Aarhus Univ, Flavour Inst, Aarhus, Denmark
[8] Univ Quebec Trois Rivieres, Dept Anat, Trois Rivieres, PQ, Canada
[9] Univ Coll London Hosp NHS Fdn Trust, Royal Natl ENT Hosp, Dept Rhinol, London, England
[10] UCL, UCL Ear Inst, London, England
[11] Geneva Univ Hosp, Dept Otorhinolaryngol Head & Neck Surg, Rhinol Olfactory Unit, Geneva, Switzerland
[12] Harvard Univ, Massachusetts Eye & Ear, Boston, MA USA
[13] Aristotle Univ Thessaloniki, Papageorgiou Hosp, Acad ORL Dept 2, Thessaloniki, Greece
[14] Univ Insubriae, ENT Clin Asst Settelaghi, Varese, Italy
[15] Med Univ Vienna, Dept Otorhinolaryngol, Vienna, Austria
[16] Univ Hosp Basel, Dept Otorhinolaryngol Head & Neck Surg, CH-4051 Basel, Switzerland
[17] Univ Chicago, Sect Otolaryngol Head & Neck Surg, Chicago, IL USA
[18] Univ Hosp Bern, Dept Otorhinolaryngol, Inselspital, Bern, Switzerland
[19] Univ Colorado, Dept Otolaryngol Head & Neck Surg, Anschutz Med Campus, Aurora, CO USA
[20] Hosp Pardubice, Dept Otorhinolaryngol & Head & Neck Surg, Pardubice, Czech Republic
[21] Sch Adv Study, Inst Philosophy, Ctr Olfactory Res & Applicat, London, England
[22] Tech Univ Dresden, Dept Otorhinolaryngol, Smell & Taste Clin, Dresden, Germany