About: http://webisa.webdatacommons.org/304334583

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 primary outcome was a 20% reduction in pain over 24 months as measured by the Western Ontario and McMaster University Osteoarthritis Index (WOMAC).
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org