1. Department of Neurology, University of California, San Francisco, CA, USA
2. Virginia Mason Multiple Sclerosis Center, Seattle, WA, USA
3. Department of Neurology, Mellen Center for MS, Cleveland Clinic
Foundation, Cleveland, OH, USA
4. Multiple Sclerosis Therapeutics, Biogen, Cambridge, MA, USA
5. Department of Neurology, University of California, San Francisco, CA,
USA, zamvil@ucsf.neuroimmunol.org