About: http://webisa.webdatacommons.org/115199947

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	A 4D ultrasound uses a special sonogram machine and takes images from a few different angles, which reveal more detailed images of the fetus, such as facial features.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.org