About: http://webisa.webdatacommons.org/328061346

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 gas such as carbon dioxide may be instilled at approximately 10 mm Hg pressure into the cavity, distending the cavity and allowing visualization of the dissected vessel and side branches.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com