Authors:
Kremenchutzky, M
Cottrell, D
Rice, G
Hader, W
Baskerville, J
Koopman, W
Ebers, GC
Citation: M. Kremenchutzky et al., The natural history of multiple sclerosis: a geographically based study 7.Progressive-relapsing and relapsing-progressive multiple sclerosis: a re-evaluation, BRAIN, 122, 1999, pp. 1941-1949