About: http://webisa.webdatacommons.org/132495572

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 maternal blood level of free beta-hCG is then measured by conventional analytical methods, such as immunological methods known to the art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com