1. Rhinology and Skull Base Research Group, St Vincent's Centre for Applied Medical Research University of New South Wales Sydney New South Wales Australia
2. Department of Otolaryngology, Faculty of Medicine Chulalongkorn University Bangkok Thailand
3. Endoscopic Nasal and Sinus Surgery Excellence Center King Chulalongkorn Memorial Hospital Bangkok Thailand
4. Faculty of Medicine and Health Sciences Macquarie University Sydney New South Wales Australia
5. Department of Otorhinolaryngology—Head and Neck Surgery Singapore General Hospital Singapore Singapore
6. Faculty of Medicine University of Sydney Sydney New South Wales Australia
7. Department of Otolaryngology, Head and Neck Surgery, Concord General Hospital University of Sydney Sydney New South Wales Australia
8. School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health UNSW Sydney Sydney New South Wales Australia