| http://www.w3.org/ns/prov#value | - Affecting 350,000 Americans, MS is the most frequent cause of neurologic disability except for traumatic injuries; MS affects twice as many females compared to males. (S. L. Hauser, Multiple Sclerosis and other demyelinating diseases In: Harrison's Principles of Internal Medicine, 13th ed., K. J. Isselbacher et al. (eds.), McGraw-Hill, pp. 2287???95 [1994]).
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