1. Faculty of Medicine and Health University of New South Wales Sydney New South Wales Australia
2. Department of Head and Neck Surgery Chris O'Brien Lifehouse Sydney New South Wales Australia
3. Central Clinical School, Faculty of Medicine and Health Sciences The University of Sydney Sydney New South Wales Australia
4. School of Dentistry, Faculty of Medicine and Health Sciences The University of Sydney Sydney New South Wales Australia
5. Royal Prince Alfred Institute of Academic Surgery Sydney Local Health District Sydney New South Wales Australia
6. Department of Otolaryngology – Head & Neck Surgery, Faculty of Medicine and Health Sciences Macquarie University Sydney New South Wales Australia