Effects of High and Low Efficacy Therapy in Secondary Progressive Multiple Sclerosis.

Roos I, Leray E, Casey R, Horakova D, Havrdova E, Izquierdo G, Madueño SE, Patti F, Edan G, Debouverie M, Pelletier J, Ozakbas S, Amato MP, Clavelou P, Grammond P, Boz C, Buzzard K, Skibina O, Ciron J, Gerlach O, Grand'Maison F, Lechner-Scott J, Malpas MPsych CliNeuro C, Butzkueven H, Vukusic S, Kalincik T; MSBase and OFSEP Study Groups.