PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Geoffrey Martin, fourth-year medical student, and his father Vincent Martin, MD, professor in the division of general internal medicine, led the study which showed that there was a 31 percent increased risk of headache and 28 percent increased risk of migraine for chronic headache sufferers on days lighting struck within 25 miles of study participant's homes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science20.com