About: http://webisa.webdatacommons.org/121909288

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	Prostate specific antigen, or PSA levels are an indicator of prostate cancer risk.
http://www.w3.org/ns/prov#wasQuotedFrom	lef.org