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Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Multiple sclerosis is a complicated disease, probably caused by a combination of factors, lead author Evan L. Thacker from the Harvard School of Public Health, Boston, told Reuters Health.
http://www.w3.org/ns/prov#wasQuotedFrom	thisisms.com