PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Completion of questionnaires taking about 30 minutes on Day 15 (?? 3 days), Day 29 (?? 3 days), and Day 57 (?? 3 days), regarding symptoms such as fatigue, mood, depression, anxiety, nausea, appetite problems, sleep problems, and overall sense of well-being.
http://www.w3.org/ns/prov#wasQuotedFrom
  • clinicaltrials.gov