1. School of Physiotherapy, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia
2. Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
3. Centre for Neuromuscular and Neurological Disorders, and Department of Medicine, University of Western Australia, Australian Neuromuscular Research Institute, Perth, W.A., Australia