1. The worldwide prevalence of multiple sclerosis;Pugliatti;Clin Neurol Neurosurg,2002
2. Histologie de la scerose en plaques;Charcot;Gaz Hosp,1868
3. Gait characteristics of individuals with multiple sclerosis before and after a 6-month aerobic training program;Rodgers;J Rehabil Res Dev,1999
4. MS epidemiology world wide. One view of current status;Kurtzke;Acta Neurol Scand Suppl,1995
5. Epidemiology of multiple sclerosis: a critical overview;Sadovnick;Can J Neurol Sci,1993