PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It is has been widely studied and proved that obstructive sleep apnea is a risk factor for cardiovascular diseases, especially hypertension, myocardial infarction and stroke.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science.gov