1. The University of Sydney; Faculty of Health Sciences; East St. Lidcombe Lidcombe NSW Australia 1825
2. Washington University; Participation, Environment and Performance Laboratory, Program in Occupational Therapy; 444 Forest Park Avenue CB 855 St Louis MO USA 63108-2212
3. James Cook University; Mackay Institute of Research and Innovation, Queensland Health and Division of Tropical Health and Medicine; Mackay Australia
4. University of York; Department of Health Sciences; Heslington York North Yorkshire UK YO10 5DQ
5. The University of Sydney; Institute for Musculoskeletal Health, School of Public Health, Faculty of Medicine and Health; PO Box 179 Missenden Road Sydney NSW Australia 2050
6. University of Oxford; Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS); Windmill Road Oxford Oxfordshire UK OX3 7LD