About: http://webisa.webdatacommons.org/277137731

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	Although the most effective approach to studying tumors is to do so in a clinical trial, ethical and safety restrictions make it hard for these types of studies to be performed on a wide scale.
http://www.w3.org/ns/prov#wasQuotedFrom	biotechdaily.com