1 Integrated Musculoskeletal Outpatient Physiotherapy Service, Guys and St Thomas's NHS Foundation Trust, Westminster Bridge Road, SE1 7EH, United Kingdom. Electronic address: christopher.tack@gstt.nhs.uk.
2 Integrated Musculoskeletal Outpatient Physiotherapy Service, Guys and St Thomas's NHS Foundation Trust, Westminster Bridge Road, SE1 7EH, United Kingdom. Electronic address: https://twitter.com/physio_grodes.
3 Integrated Musculoskeletal Outpatient Physiotherapy Service, Guys and St Thomas's NHS Foundation Trust, Westminster Bridge Road, SE1 7EH, United Kingdom.