About: http://webisa.webdatacommons.org/211798775

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	Thus, variance in types of surgery and patient size necessitates surgical retractor systems that are adjustable.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es