PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • prevalence of all types headaches was 73.2%, in females 79.2% compared 69.5% in males,
http://www.w3.org/ns/prov#wasQuotedFrom
  • thejournalofheadacheandpain.com