Vitamin D, smoking, EBV, and long-term cognitive performance in MS: 11-year follow-up of BENEFIT.

Address: From the Department of Nutrition (M.C., K.L.M, A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Global Public Health and Primary Care (M.C.), University of Bergen, Bergen, Norway; Department of Neurology (E.H.M.-L.), Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain; Departments of Medicine, Biomedicine and Clinical Research (C.B., L.K., J.K.), Neurologic Clinic and Policlinic, University Hospital Basel, University of Basel, Basel, Switzerland; CHU Hôpital Pontchaillou (G.E.), Rennes, France; University of Ottawa and Ottawa Hospital Research Institute (M.S.F.), Ottawa, Canada; Department of Neurology (H.-P.H.), Medical Faculty, Heinrich-Heine Universität, Düsseldorf, Germany; St. Michael's Hospital (X.M.), University of Toronto, Canada and Multiple Sclerosis Center of Catalonia (Cemcat) (X.M.), Vall d'Hebron University Hospital, Barcelona, Spain; Ferkauf Graduate School of Psychology (F.W.F.), Yeshiva University, New York, NY; Department of Neurology (I.K.P.), Medical Faculty, Heinrich-Heine Universität, Düsseldorf and COGITO Center for Applied Neurocognition and Neuropsychological Research (I.K.P.), Düsseldorf, Germany; Technical University of Munich (B.H.), School of Medicine and Munich Cluster for Systems Neurology (SyNergy) (B.H.), Munich, Germany; Central Texas Neurology Consultants (E.J.F.), Round Rock, TX; Neuroimmunology and Multiple Sclerosis Research (S.S.), Department of Neurology, University Hospital Zurich, University of Zurich and Center for Neuroscience Zurich (S.S.), Federal Institute of Technology (ETH), Zurich, Switzerland; Bayer AG (E.-M.W.), Berlin, Germany; Department of Epidemiology (A.A.), Harvard T.H. Chan School of Public Health, Boston, MA and Channing Division of Network Medicine (A.A.); and Department of Medicine (A.A.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA. [email protected].; From the Department of Nutrition (M.C., K.L.M, A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; Department of Global Public Health and Primary Care (M.C.), University of Bergen, Bergen, Norway; Department of Neurology (E.H.M.-L.), Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain; Departments of Medicine, Biomedicine and Clinical Research (C.B., L.K., J.K.), Neurologic Clinic and Policlinic, University Hospital Basel, University of Basel, Basel, Switzerland; CHU Hôpital Pontchaillou (G.E.), Rennes, France; University of Ottawa and Ottawa Hospital Research Institute (M.S.F.), Ottawa, Canada; Department of Neurology (H.-P.H.), Medical Faculty, Heinrich-Heine Universität, Düsseldorf, Germany; St. Michael's Hospital (X.M.), University of Toronto, Canada and Multiple Sclerosis Center of Catalonia (Cemcat) (X.M.), Vall d'Hebron University Hospital, Barcelona, Spain; Ferkauf Graduate School of Psychology (F.W.F.), Yeshiva University, New York, NY; Department of Neurology (I.K.P.), Medical Faculty, Heinrich-Heine Universität, Düsseldorf and COGITO Center for Applied Neurocognition and Neuropsychological Research (I.K.P.), Düsseldorf, Germany; Technical University of Munich (B.H.), School of Medicine and Munich Cluster for Systems Neurology (SyNergy) (B.H.), Munich, Germany; Central Texas Neurology Consultants (E.J.F.), Round Rock, TX; Neuroimmunology and Multiple Sclerosis Research (S.S.), Department of Neurology, University Hospital Zurich, University of Zurich and Center for Neuroscience Zurich (S.S.), Federal Institute of Technology (ETH), Zurich, Switzerland; Bayer AG (E.-M.W.), Berlin, Germany; Department of Epidemiology (A.A.), Harvard T.H. Chan School of Public Health, Boston, MA and Channing Division of Network Medicine (A.A.); and Department of Medicine (A.A.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA.