1. Sydney Head and Neck Cancer Institute, Department of Head and Neck Surgery Chris O'Brien Lifehouse Sydney Australia
2. Westmead Hospital Sydney Australia
3. Sydney Medical School, Faculty of Medicine and Health Sciences The University of Sydney Sydney Australia
4. Royal Prince Alfred Institute of Academic Surgery Sydney Local Health District Sydney Australia
5. Department of Otolaryngology‐Head & Neck Surgery, Faculty of Medicine and Health Sciences Macquarie University Sydney Australia