1. University College London, Royal National
Orthopaedic Hospital, Brockley Hill, Stanmore, Middlesex
HA7 4LP, UK
2. Guy’s and St Thomas’ NHS Foundation Trust, Great
Maze Pond, London SE1 7EH, UK
3. University College London, Royal National
Orthopaedic Hospital, Brockley Hill, Stanmore, Middlesex
HA7 4LP, UK and School of Pharmacy and Biomedical
Sciences, University of Portsmouth, Portsmouth
PO1 2DT, UK