About: http://webisa.webdatacommons.org/87223322

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	PSA is a protein he is made in the prostate - a small gland about the size and shape of a walnut, although it usually enlarges with age.
http://www.w3.org/ns/prov#wasQuotedFrom	experts123.com