About: http://webisa.webdatacommons.org/410281635

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	In one embodiment, the system is a cannula or a surgical hand-held apparatus for approaching the annulus through an open chest procedure, wherein the open chest procedure is a sternotomy or a thoracotomy.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es