Fatigue and Comorbidities in Multiple Sclerosis. Fiest KM, Fisk JD, Patten SB, Tremlett H, Wolfson C, Warren S, McKay KA, Berrigan LI, Marrie R A, CIHR Team in the Epidemiology and Impact of Comorbidity on Multiple Sclerosis(ECoMS) Int J MS Care. 2016 Mar-Apr; 18(2):96-104. PMID: 27134583. Abstract CommentRecommendBookmarkWatch