Published on in Vol 17, No 8 (2015): August
1 Beth Israel Deaconess Medical Center, Department of Neurology, Harvard Medical school, Boston, MA, United States
2 University of Kansas School of Medicine, Department of Neurology, Kansas City, KS, United States
3 American Academy of Neurology, Minneapolis, MN, United States
4 VA Maryland Health Care System's MS Center of Excellence, Department of Neurology, University of Maryland School of Medicine, Baltimore, United States
5 Dana Farber Cancer Institute, Survey and Data Management Core, Harvard Medical School, Boston, MA, United States