High prevalence of persistent smell loss and qualitative smell dysfunction during the coronavirus disease 2019 (COVID-19) pandemic in the United States: Urgent need for clinical trials

Affiliations

• ¹ ENT Department, Barts Health NHS Trust, London, UK.
• ² UCL Cancer Institute, University College London, London, UK.
• ³ Division of Surgery and Interventional Science, University College London, London, UK.
• ⁴ CRUK & UCL Cancer Trials Centre, University College London, London, UK.
• ⁵ Department of Otolaryngology, University of San Diego School of Medicine, San Diego, California, USA.
• ⁶ Centre for Obesity Research, University College London, London, UK.
• ⁷ Bariatric Centre for Weight Management and Metabolic Surgery, University College London Hospitals NHS Trust, London, UK.
• ⁸ National Institute for Health Research, UCLH Biomedical Research Centre, London, UK.
• ⁹ Guy's Hospital, Guy's and St. Thomas' NHS Foundation Trust, London, UK.
• ¹⁰ The Norfolk Smell & Taste Clinic, Norfolk & Waveney, ENT Service, Norwich, UK.
• ¹¹ Norwich Medical School, University of East Anglia, Norwich, UK.
• ¹² Royal National ENT Hospital, UCLH Foundation Trust, London, UK.
• ¹³ Department of Otolaryngology - Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA.
• ¹⁴ Department of Otolaryngology - Head and Neck Surgery, Medical University of South Carolina, Charleston, SC, USA.