About: http://webisa.webdatacommons.org/12334430

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	Only one beam is on at a time, but there may be several fired from each position, all focused on the tumour.There is a small risk of harming the rectal wall, just behind the prostate, but we have not done so yet.
http://www.w3.org/ns/prov#wasQuotedFrom	dailymail.co.uk