1. Department of Speech Voice and Swallowing, Wythenshawe Hospital, Manchester University NHS Foundation Trust, UK
2. Manchester Academic Critical Care, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, UK
3. Therapy Services, National Hospital for Neurology and Neurosurgery, UK
4. Critical Care Research Group, The Prince Charles Hospital, Brisbane, Australia
5. Faculty of Medicine, University of Queensland, Brisbane, Australia
6. Speech and Language Therapy, The Royal London Hospital, UK