1. From the Department of Cardiovascular Sciences, University of Leicester, United Kingdom (N.P., J.J., M.A.H., L.C., E.M.L.C.)
2. NIHR Leicester Biomedical Research Centre–Cardiovascular Theme, Glenfield Hospital, United Kingdom (N.P., E.M.L.C.)
3. Department of Clinical Neurosciences, St George’s, University of London, United Kingdom (N.P., X.L., J.C., P.G.)
4. Department of Medical Physics, University Hospitals of Leicester NHS Trust, United Kingdom (C.B., E.M.L.C.)
5. Neuroradiology Department, St George’s Hospital, London, United Kingdom (A.C.)
6. Department of Psychiatry and Applied Psychology, University of Nottingham, United Kingdom (V.E.).