[1
]
Physiotherapy Research Unit, Nuffield Orthopaedic Centre, Oxford University Hospitals
NHS Trust, Windmill Rd, Oxford, OX3 7HE, UK. meredith.newman@ouh.nhs.uk.
[2
]
Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS),
University of Oxford, Windmill Rd, Oxford, OX3 7HE, UK. meredith.newman@ouh.nhs.uk.
[3
]
Mind Foundry Ltd, Eagle House, Walton Well Rd, Oxford, OX2 6ED, UK.
[4
]
Physiotherapy Research Unit, Nuffield Orthopaedic Centre, Oxford University Hospitals
NHS Trust, Windmill Rd, Oxford, OX3 7HE, UK.
[5
]
Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS),
University of Oxford, Windmill Rd, Oxford, OX3 7HE, UK.
[6
]
Oxford Clinical Trials Research Unit, Centre for Statistics in Medicine, NDORMS, Botnar
Research Centre, Windmill Rd, Oxford, OX3 7HE, UK.