About: http://webisa.webdatacommons.org/142252613

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	During endoscopic procedures of the type outlined above, it is common for the lens or viewing window of the scope to become periodically obstructed by blood or other body fluids or by tissue fragments or fog.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com