About: http://webisa.webdatacommons.org/438635207

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	when previous surgery to the lumbar spine has been performed and there is a need to differentiate scar due to previous surgery from disc herniation, tumor, or hemorrhage; or
http://www.w3.org/ns/prov#wasQuotedFrom	mn.gov