Discontinuation of treatment with IFN-beta leads to exacerbation of experimental autoimmune encephalomyelitis in Lewis rats. Rapid reversal of the antiproliferative activity of IFN-beta and excessive expansion of autoreactive T cells as disease promoting mechanisms. - van der Meide PH; de Labie MC; Ruuls SR; Groenestein RJ; Botman CA; Olsson T; Dijkstra CD (Journal of neuroimmunology, 1998)