Multiple sclerosis therapies in pediatric patients with refractory multiple sclerosis.

Yeh EA, Waubant E, Krupp LB, Ness J, Chitnis T, Kuntz N, Ramanathan M, Belman A, Chabas D, Gorman MP, Rodriguez M, Rinker JR, Weinstock-Guttman B, National Network of Pediatric MS Centers of Excellence