1 Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK. Electronic address: [email protected].
2 Faculty of Health and Social Sciences, Bournemouth University, Bournemouth, UK.
3 Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK.
4 Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK.
5 Centre for Healthcare Modelling and Informatics, University of Portsmouth, Portsmouth, UK.
6 Department of Medicine, Portsmouth Hospitals NHS Trust, Portsmouth, UK.