1. Department of Head and Neck Surgery Chris O'Brien Lifehouse Camperdown New South Wales Australia
2. Maxillofacial Surgery Unit, Gold Coast Hospital and Health Service Gold Coast University Hospital Southport Queensland Australia
3. School of Medicine and Dentistry Griffith University Southport Queensland Australia
4. Sydney Medical School, Faculty of Medicine and Health The University of Sydney Camperdown New South Wales Australia
5. Department of Otolaryngology – Head & Neck Surgery, Faculty of Medicine and Health Sciences Macquarie University Sydney New South Wales Australia
6. Royal Prince Alfred Institute of Academic Surgery Sydney Local Health District Camperdown New South Wales Australia