About: http://webisa.webdatacommons.org/251538525

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 mechanical positioner 300 comprises an interface plate 302 which contacts the tissue, and is made of some material which is transparent to x-rays, such as Be, C, or plastic.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca