About: http://webisa.webdatacommons.org/310833826

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	The proximal end 853 of cannula 851 may include a valve 854 to prevent back flow of fluid, such as blood and/or saline, from the vessel out the cannula 851 end.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com