About: http://webisa.webdatacommons.org/41469332

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 laser surgery, such as transmyocardial revascularization, it is often desirable to have the laser beam exit the handpiece at some angle other than 0???, for example, 15???, 20???, 30???, 45???, 90???.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es