1. University of Oxford; Pain Research and Nuffield Department of Anaesthetics; West wing (Level 6) John Radcliffe Hospital Oxford Oxfordshire UK OX3 9DU
2. Oxford Oxfordshire UK
3. Plymouth UK
4. University of Oxford; Pain Research and Nuffield Department of Clinical Neurosciences (Nuffield Division of Anaesthetics); West Wing (Level 6) John Radcliffe Hospital Oxford Oxfordshire UK OX3 9DU