About: http://webisa.webdatacommons.org/325055601

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	However, because these were not randomized controlled trials, researchers don???t know for sure whether the drugs are responsible or other factors are involved.
http://www.w3.org/ns/prov#wasQuotedFrom	aad.org