About: http://webisa.webdatacommons.org/339993696

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	To meet the first sealing requirement, various seals have been provided for maintaining the pneumoperitoneum in the cavity when no trocar or other surgical instrument is present in the cannula.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au