1. Department of Otolaryngology–Head and Neck Surgery, University of Alabama at Birmingham
2. Department of Otolaryngology, Guy’s Hospital, London, United Kingdom
3. Department of Otorhinolaryngology–Head and Neck Surgery, The Jikei University School of Medicine, Tokyo, Japan
4. Department of Otolaryngology–Head and Neck Surgery, University of North Carolina at Chapel Hill
5. Rhinology and Skull Base Research Group, St Vincent’s Centre for Applied Medical Research, University of New South Wales, Sydney, New South Wales, Australia
6. Department of Otolaryngology, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia