About: http://webisa.webdatacommons.org/396797362

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	They are typically reserved for patients who have failed to respond to other measures such as physical therapy or drugs, such as steroids.
http://www.w3.org/ns/prov#wasQuotedFrom	bio-medicine.org