PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Prior radiotherapy, chemotherapy, including infusion or perfusion therapy for current disease or any immunotherapy including tumor vaccines, interferon-alfa, interleukins, levamisole or other biologic response modifiers within the past 4 weeks.
http://www.w3.org/ns/prov#wasQuotedFrom
  • clinicaltrials.gov