1. Intensive Care Unit; Guy's & St. Thomas' Hospital; Lambeth; London; UK
2. Intensive Care Unit; Royal London Hospital; Whitechapel; London; UK
3. Department of Anaesthetics; South Eastern HSC Trust; Belfast; UK
4. Adult Intensive Care Unit; John Radcliffe Hospital; Oxford; UK
5. NHS Blood & Transplant; Oxford Radcliffe Hospitals Trust; Oxford; UK
6. Department of Haematology; Royal London Hospital; Whitechapel; London; UK
7. Intensive Care Unit; Morriston Hospital, ABMUHB; Swansea; UK
8. Critical Care and Centre for Inflammation Research; Edinburgh Royal Infirmary, Edinburgh University; Edinburgh; UK