1. From the Department of Clinical and Movement Neurosciences (M.M.A., C.S.S., D.A.K., R.R.C., N.W.W.), University College London Queen Square Institute of Neurology, United Kingdom; Department of Medical Technology (M.M.A.), Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia; Institute of Cardiovascular Science (C.F., A.F.S., S.C., A.D.H.), Faculty of Population Health, and Health Data Research UK London (A.D.H.), University College London; British Heart...