About: http://webisa.webdatacommons.org/297313995

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 excess fluid is usually caused by conditions such as rheumatoid arthritis or osteoarthritis that irritate the knee.
http://www.w3.org/ns/prov#wasQuotedFrom	uwhealth.org