1. St Thomas' Hospital , Department of Emergency Medicine, Guy’s and St Thomas’ NHS Foundation Trust and King’s Health Partners , Westminster Bridge Rd, London SE1 7EH, UK
2. St Thomas' Hospital , Department of Clinical Toxicology, Guy’s and St Thomas’ NHS Foundation Trust and King’s Health Partners , Westminster Bridge Rd, London SE1 7EH, UK
3. St Thomas' Hospital campus , Faculty of Life Sciences and Medicine, King’s College London , Westminster Bridge Rd, London SE1 7EH, UK