Author information:
(1)Translational Neuroradiology Section, National Institute of Neurological 
Disorders and Stroke, NIH, 10 Center Drive MSC 1400, Building 10 Room 5C103, 
Bethesda, Maryland, USA.
(2)St. Michael's Hospital, University of Toronto, Ontario, Canada.
(3)Department of Neurology, Johns Hopkins University, Baltimore, Maryland, USA.
(4)Department of Diagnostic Radiology, Yale University, New Haven, Connecticut, 
USA.
(5)Division of Clinical Neuroscience, University of Nottingham, UK.
(6)Center for Neurological Imaging, Department of Radiology, Brigham and Women's 
Hospital, Harvard Medical School, Boston, Massachusetts, USA.
(7)Department of Radiology and Biomedical Imaging, University of California, San 
Francisco, California, USA.
(8)Department of Neurology, Massachusetts General Hospital, Harvard Medical 
School, Boston, Massachusetts, USA.
(9)Center for Biomedical Imaging, Department of Radiology, Massachusetts General 
Hospital, Harvard Medical School, Boston, Massachusetts, USA.
(10)Department of Neuroscience, Psychology, Drug Research and Child Health, 
University of Florence, Italy.
(11)Multiple Sclerosis Research Group, Department of Neurology, University of 
Texas Health Science Center at Houston, Texas, USA.
(12)Mellen Center for MS Treatment and Research, Cleveland Clinic Foundation, 
Cleveland, Ohio, USA.
(13)Department of Pediatrics, Division of Neurology, UBC MRI Research Centre, 
University of British Columbia, Vancouver, Canada.
(14)Advanced Imaging Research Center, Oregon Health &Science University, 
Portland, Oregon, USA.
(15)Department of Biostatistics and Epidemiology, Perelman School of Medicine, 
University of Pennsylvania, Philadelphia, Pennsylvania, USA.
(16)Department of Pathology, Stanford University School of Medicine, Stanford, 
California, USA.
(17)Department of Neurological Sciences, University of Vermont College of 
Medicine, Burlington, Vermont, USA.
(18)Medical Image Analysis Center, University Hospital Basel, Switzerland.
(19)Buffalo Neuroimaging Analysis Center, Department of Neurology, State 
University of New York at Buffalo, New York, USA.
(20)Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, 
California, USA.
(21)Multiple Sclerosis Center, Department of Neurology, Keck School of Medicine 
of the University of Southern California, Los Angeles, California, USA.