About: http://webisa.webdatacommons.org/254740074

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	Large trials have looked into nutritional supplements, such as vitamin E and the mineral selenium, but results to date have not shown that any clearly reduces prostate cancer risk.
http://www.w3.org/ns/prov#wasQuotedFrom	medcentral.org