About: http://webisa.webdatacommons.org/19347360

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, issues such as confidentiality, accuracy, and direct and indirect costs are practical barriers to implementing such a registry.
http://www.w3.org/ns/prov#wasQuotedFrom	cancer.gov