PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There are cases in which drugs for the treatment of erectile dysfunction have interacted with nitrates, leading to serious systemic hypotension and death, a problem which occurs particularly in middle-aged or older men with heart disease.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com