About: http://webisa.webdatacommons.org/282585607

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	votally extending therefrom, said arms each including a mounting member engageable with a corresponding one of said first and second coupling members to mount said expansion instrument on said proximal end of said retractor.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com