University of Liverpool - Department of Eye and Vision Science, University of Liverpool - Diabetes & Endocrinology Research and Pain Research Institute, University of Liverpool - Diabetes & Endocrinology Research and Pain Research Institute, University of Liverpool - Diabetes & Endocrinology Research and Pain Research Institute, The University of Manchester - Division of Cardiovascular Sciences, The University of Manchester - Department of Neurology, The University of Manchester - Department of Neurology, The University of Manchester - Department of Neurology, Cornell University - Department of Medicine, Cornell University - Department of Medicine, Cornell University - Department of Medicine, Cornell University - Department of Medicine, Hamad Medical Corporation - Neuroscience Institute, Hamad Medical Corporation - Neuroscience Institute, University of Alberta - Department of Medicine, Hamad Medical Corporation - Geriatric & Memory Clinic, Hamad Medical Corporation - Geriatric & Memory Clinic, The University of Manchester - Division of Cardiovascular Sciences, University of Liverpool - Department of Eye and Vision Science and University of Liverpool - Diabetes & Endocrinology Research and Pain Research Institute

Cornell University - Department of Medicine, Psychiatry Hospital, Hamad Medical Corporation, Psychiatry Hospital, Hamad Medical Corporation, Cornell University - Department of Medicine, Cornell University - Department of Medicine, Weill Cornell Medicine in Qatar, Qatar Foundation, Weill Cornell Medicine in Qatar, Qatar Foundation, Radiology, University of Arkansas for Medical Sciences, Psychiatry Hospital, Hamad Medical Corporation, Psychiatry Hospital, Hamad Medical Corporation, Geriatric, Rumailah Hospital, Hamad Medical Corporation, Psychiatry Hospital, Hamad Medical Corporation, Psychiatry Hospital, Hamad Medical Corporation, Weill Cornell Medicine in Qatar, Qatar Foundation, Hamad Medical Corporation - Geriatric & Memory Clinic, Neuroradiology, Hamad General Hospital, Hamad Medical Corporation, Hamad Medical Corporation Mental Health Services - Department of Psychiatry, Psychiatry Hospital, Hamad Medical CorporationHamad Medical Corporation Mental Health Services - Department of Psychiatry, The University of Manchester - Division of Cardiovascular Sciences and University of Sheffield - The Neuroscience Institute

Cornell University - Department of Medicine, Hamad Medical Corporation - Neuroscience Institute, Hamad Medical Corporation - Neuroscience Institute, Cornell University - Weill Cornell Medicine - Qatar, Cornell University - Weill Cornell Medicine - Qatar, Cornell University - Department of Medicine, Cornell University - Department of Medicine, Cornell University - Department of Medicine, Cornell University - Weill Cornell Medicine - Qatar, University of Alberta - Division of Neurology, University of Alberta - Department of Medicine and The University of Manchester - Division of Cardiovascular Sciences