About: http://webisa.webdatacommons.org/54752148

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 image lens and the illumination bulb are frequently smeared with blood, stool or other body fluids while in a hollow organ which obstructs a clear view.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca