1. Consultant Paediatric and Young Adult Trauma and Orthopaedic Surgeon,
Barts and the London NHSTrust, Whitechapel Road, Whitechapel, London E1 1BB, UK
2. Reader in Clinical Pharmacology, University Department of Primary
Health Care, Rosemary Rue Building, Old Road Campus, Roosevelt Drive, Headington,
Oxford OX3 7LF, UK