PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Family physicians are on the front lines in the ???war on pain.??? It is estimated that chronic pain may affect 15 percent to 30 percent of the general population of the United States ??? as many as 70 million individuals.1 For many of these patients, controlled substances such as opioid analgesics are the mainstays of therapy because of their efficacy and relative freedom from end-organ toxicitie
http://www.w3.org/ns/prov#wasQuotedFrom
  • aafp.org