About: http://webisa.webdatacommons.org/250374635

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	It is essential that the assignment be purely by chance, and that neither the subject, nor the physicians and other researchers who work with the subject, know what the person is taking.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com