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Hoogs M, Kaur S, Smerbeck A, Weinstock-Guttman B, Benedict RH.Hoogs M, et al.Int J MS Care. 2011 Summer;13(2):57-63. doi: 10.7224/1537-2073-13.2.57.Int J MS Care. 2011.PMID: 24453706Free PMC article.