1. School of Occupational Therapy, Social Work and Speech Pathology, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
2. Department of Linguistics, Macquarie University, North Ryde, New South Wales, Australia
3. Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
4. Department of Special Needs Education, University of Oslo, Norway
5. Department of Otorhinolaryngology and Head and Neck Surgery, Leiden University Medical Centre, the Netherlands
6. Department of Social Work, Education and Community Wellbeing, Northumbria University, Newcastle upon Tyne, United Kingdom