About: http://webisa.webdatacommons.org/85867221

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	The cause is unknown in most cases but others are associated with systemic conditions such as multiple sclerosis, sarcoidosis or HIV infection.
http://www.w3.org/ns/prov#wasQuotedFrom	thefreedictionary.com