1. Occupational Therapy, School of Health Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
2. Neurology Department, Hunter New England Area Health Service, New Lambton Heights, NSW 2305, Australia
3. Hunter New England Area Health Service, New Lambton Heights, NSW 2305, Australia
4. School of Medicine and Public Health, University of Newcastle, Callaghan, NSW 2308, Australia