1. Department of Neurology, The Buffalo General Hospital, Buffalo, NY 14203, USA
2. Department of Neurology and Neuroscience, Cornell Medical Center, New York, NY 10021, USA
3. Department of Neurology, SUNY at Stony Brook University Hospital, Stony Brook, NY 11794, USA
4. Department of Neurology, University of Rochester Medical Center, Rochester, NY 14642, USA
5. Division of Neurology, Winthrop University Hospital, Mineola, NY 11501, USA
6. Center for Functional Assessment Research, Rehabilitation Medicine Department, SUNY at Buffalo, Buffalo, NY 14214, USA
7. Baird MS and Neuroimmunology Tissue Repository, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
8. The Hospital for Joint Diseases Orthopaedic Institute, MS Care Center, New York, NY 10003, USA
9. Department of Neurology, Albany Medical College, Albany, NY 12208, USA
10. Department of Neurology, SUNY Health Science Center, Syracuse, NY 13210, USA
11. Division of Neurology, Maimonides Medical Center, Brooklyn, NY 11219, USA
12. MS Center, Staten Island University Hospital, Staten Island, NY 10306, USA
13. MS Center, St. Agnes Hospital, White Plains, NY 10605, USA
14. New York Hospital Medical Center of Queens, Flushing, NY 11355, USA