About: http://webisa.webdatacommons.org/182993817

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	I used to assume that Ultrasound was a kind of x-ray, but after looking it up, they are both quite different.
http://www.w3.org/ns/prov#wasQuotedFrom	serebiiforums.com