Cognitive impairment, health-related quality of life and vocational status at early stages of multiple sclerosis: a 7-year longitudinal study. Ruet A, Deloire M, Hamel D, Ouallet J-C, Petry K, Brochet B J Neurol. 2012 Oct 19. Epub 2012 Oct 19. PMID: 23081755. Abstract CommentRecommendBookmarkWatch