[1] Katholieke Univ Leuven, Lab Allergy & Clin Immunol, Res Grp, Dept Microbiol Immunol & Transplantat, Leuven, Belgium
[2] Univ Hosp Leuven, Dept Otorhinolaryngol, Leuven, Belgium
[3] Univ Hosp Ghent, Dept Otorhinolaryngol, Lab Upper Airways Res, Ghent, Belgium
[4] Univ Amsterdam, Amsterdam Univ Med Ctr, Dept Otorhinolaryngol & Head Neck Surg, Locat AMC, Amsterdam, Netherlands
[5] Univ Barcelona, Hosp Clin, Ctr Med Teknon, Dept Otorhinolaryngol,Rhinol & Skull Base, Barcelona, Spain
[6] Univ Chicago Med, Chicago, IL USA
[7] Skane Univ Hosp, Dept Resp Med & Allergol, Lund, Sweden
[8] Univ North Carolina Chapel Hill, Div Rhinol Allergy & Endoscop Skull Base Surg, Chapel Hill, NC USA
[9] Univ Queensland Ctr Clin Res, Herston, Australia
[10] Royal Brisbane & Womens Hosp, Brisbane, Australia
[11] Univ Penn, Dept Otorhinolaryngol Head & Neck Surg, Philadelphia, PA USA
[12] Aristotle Univ Thessaloniki, AHEPA Hosp, Dept ORL Head & Neck Surg 1, Thessaloniki, Greece
[13] Univ Cattolica Sacro Cuore, Fdn Policlin Univ A Gemelli IRCSS, Dept Otolaryngol Head & Neck Surg, Rome, Italy
[14] Univ Montreal, Dept Otolaryngol Head & Neck Surg, Montreal, PQ, Canada
[15] Univ Groningen, Univ Med Ctr Groningen, Dept Clin Pharm & Pharmacol, Groningen, Netherlands
[16] Univ Auckland, Dept Surg, Auckland, New Zealand
[17] Royal Natl Ear Nose & Throat, London, England
[18] Eastman Dent Hosp, London, England
[19] Eastern Virginia Med Sch, Dept Otolaryngol & Head & Neck Surg, Norfolk, VA USA
[20] Univ New South Wales, Appl Med Res Ctr, Rhinol & Skull Base, Sydney, Australia
[21] Macquarie Univ, Fac Med & Hlth Sci, Sydney, Australia
[22] Guys & St Thomas Hosp, Ear Nose & Throat Dept, Guys & St, London, England
[23] Northwestern Univ, Feinberg Sch Med, Dept Otolaryngol Head & Neck Surg, Chicago, IL USA
[24] Northwestern Univ, Feinberg Sch Med, Div Allergy Immunol, Chicago, IL USA
[25] Hop Univ Geneve, Geneva, Switzerland
[26] Univ Calif Los Angeles, Dept Head & Neck Surg, David Geffen Sch Med, Los Angeles, CA USA
[27] Harvard Med Sch, Brigham & Womens Hosp, Dept Surg, Div Otolaryngol Head & Neck Surg, Boston, MA USA
[28] Rhinol Ctr Munich, Munich, Germany
[29] ENT Clin, Munich, Germany
[30] UCLH, Royal Natl Throat Nose & Ear Hosp, London, England
[31] Hosp Clin Barcelona, Dept Otorhinolaryngol, Barcelona, Spain
[32] Univ Barcelona, Hosp Clin, ENT Dept, Rhinol Unit,IDIBAPS,CIBERES, Barcelona, Catalonia, Spain
[33] Univ Barcelona, Hosp Clin, ENT Dept, Smell Clin,IDIBAPS,CIBERES, Barcelona, Catalonia, Spain
[34] NIHR UCLH Biomed Res Ctr, London, England
[35] UCL, Ear Inst, London, England
[36] Univ Crete, Dept Otorhinolaryngol, Sch Med, Iraklion, Greece
[37] Univ Edinburgh, Usher Inst, Edinburgh, Scotland
[38] Univ Helsinki, Haartman Inst, Medicum, Helsinki, Finland
[39] Helsinki Univ Hosp, Skin & Allergy Hosp, Helsinki, Finland
[40] Med Univ South Carolina, Dept Otolaryngol Head & Neck Surg, Charleston, SC USA
[41] Roa ENT Clin, Oslo, Norway
[42] Med Univ Graz, Dept Otorhinolaryngol, Graz, Austria
[43] Univ Antwerp, Fac Med & Hlth Sci, Antwerp, Belgium
[44] Antwerp Univ Hosp, Dept ENT Head & Neck Surg, Antwerp, Belgium
[45] Antwerp Univ Hosp, Multidisciplinary Sleep Disorder Ctr, Antwerp, Belgium
[46] EUFOREA, Woluwe St Lambert, Belgium
[47] Univ Klinikum Dusseldorf, Dept Otorhinolaryngol, Dusseldorf, Germany