1. Department of Neurosurgery; Queen's Hospital; Barking, Havering and Redbridge NHS Trust; Romford Essex
2. Department of Emergency Medicine; Bart's Health NHS Trust; London UK
3. Department of Emergency Medicine; St. Thomas Hospital; London UK
4. Department of Pathology; Queen's Hospital; Barking, Havering and Redbridge NHS Trust; Romford Essex
5. Department of Biochemistry; Royal London Hospital; London UK
6. Department of Emergency Medicine; Queen Mary University of London; London UK