(HealthDay)—For patients with secondary progressive multiple sclerosis (SPMS), relapses are associated with accelerated disability progression, according to a study published online July 27 in JAMA Neurology. Nathaniel Lizak, M.B.B.S., from the University of Melbourne in Australia, and colleagues examined the association between relapses and rate of disability accumulation in patients with SPMS in an observational […]