About: http://webisa.webdatacommons.org/137322231

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	Another difficulty which has been presented is that there often may be materials such as blood, in the region between the emission point of the laser beam at the end of the fiber and the obstruction.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com