Characterizing the mechanisms of progression in multiple sclerosis: Evidence and new hypotheses for future directions

Elliot Frohman, M. Filippi, Olaf Stuve, S. G. Waxman, J. Corboy, J. T. Phillips, C. Lucchinetti, J. Wilken, N. Karandikar, B. Hemmer, Nancy L Monson, J. De Keyser, H. Hartung, L. Steinman, J. R. Oksenberg, B. A C Cree, S. Hauser, M. K. Racke