Defining the clinical course of multiple sclerosis: the 2013 revisions.

Lublin, Fd; Reingold, Sc; Cohen, Ja; Cutter, Gr; Sørensen, Ps; Thompson, Aj; Wolinsky, Js; Balcer, Lj; Banwell, B; Barkhof, F; Bebo B., Jr; Calabresi, Pa; Clanet, M; Comi, Giancarlo; Fox, Rj; Freedman, Ms; Goodman, Ad; Inglese, M; Kappos, L; Kieseier, Bc; Lincoln, Ja; Lubetzki, C; Miller, Ae; Montalban, X; O'Connor, Pw; Petkau, J; Pozzilli, C; Rudick, Ra; Sormani, Mp; Stüve, O; Waubant, E; Polman, C. H.