About: http://webisa.webdatacommons.org/32921335

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	Have taken drugs that influence the immune system, HIV or other vaccines, or investigational drugs within 30 days prior to study entry.
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov