About: http://webisa.webdatacommons.org/420563027

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	Before puncturing the abdominal wall, an inert gas, such as carbon dioxide, is introduced within the abdominal cavity, usually by means of a needle supplied with the inert gas from a pressurized source.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com