About: http://webisa.webdatacommons.org/356631929

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	Retraction device 582 includes a barrier element 583 formed from a sheet of flexible, biocompatible material, such as polyethylene, and including a plurality of handle cut-outs 584.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca