1 PhD Student, Pabinger & Ay Laboratory, Clinical Division of Haematology, Department of Medicine I, Medical University of Vienna, Vienna, Austria.
2 Senior Lecturer in Mental Health, Faculty of Medicine and Health, Norwich Medical School, University of East Anglia, Norwich.
3 Reader in Communication and Stroke Rehabilitation, Rehabilitation and Assistive Technology Group, ScHARR (School of Health and Related Research), The University of Sheffield, Sheffield.
4 Lecturer in Psychiatric Epidemiology, Bristol Medical School, Bristol.