Accepted for Publication: September 30, 2013.
Published Online: March 17, 2014. doi:10.1001/jamaneurol.2013.5323.
Study concept and design: DeSena, Graves, Greenberg.
Acquisition of data: DeSena, Graves.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: DeSena, Morriss, Greenberg.
Critical revision of the manuscript for important intellectual content: All authors.
Obtained funding: Greenberg.
Administrative, technical, and material support: Graves, Greenberg.
Study supervision: Graves, Greenberg.
Conflict of Interest Disclosures: Dr DeSena’s fellowship was provided by the Transverse Myelitis Association. Dr Greenberg has consulted for DioGenix, Elan, and Biogen Idec; has previously given expert testimony; and has received grants/grants pending with the Accelerated Cure Project, the Guthy-Jackson Charitable Foundation, and Amplimmune. Dr Greenberg has also received payment for or has given lectures for the Multiple Sclerosis Association of America and Medilogix, and he has stock/stock options with DioGenix. No other disclosures were reported.