About: http://webisa.webdatacommons.org/376701588

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	Accordingly, there is a need for a self-supporting retractor capable of holding open an anatomic space for endoscopic vascular procedures that does not require external support to maintain the space.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es