1. Department of Speech and Language Pathology, Chris O’Brien Lifehouse, Sydney, Australia
2. Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia
3. University of Technology Sydney, Sydney, Australia
4. Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
5. Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Sydney Head and Neck Cancer Institute, Sydney, Australia
6. Faculty of Medicine and Health, Sydney Medical School, The University of Sydney, Sydney, Australia and
7. Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Sydney, Australia