1. University of Teesside; Centre for Rehabilitation Sciences (CRS), Research Institute for Health Sciences and Social Care; School of Health and Social Care Middlesborough Tees Valley UK TS1 3BA
2. Sydney Medical School, The University of Sydney; Rehabilitation Studies Unit, Northern Clinical School; PO Box 6 Ryde NSW Australia 1680
3. St Vincent's Hospital; Sacred Heart Rehabilitation Service; Sydney Australia
4. Royal North Shore Hospital of Sydney; Department of Aged Care and Rehabilitation Medicine; Building 12 St Leonards NSW Australia NSW 2065