About: http://webisa.webdatacommons.org/21355964

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 nature of these open and mini-open procedures typically requires expensive resources (i.e. additional staff such as surgeons and assistants) to assist with retraction by holding the various retraction and/or surgical instruments.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com