About: http://webisa.webdatacommons.org/169466903

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Because the entire CNS is heavily invested with opioid receptors that mediate central and spinal analgesia, the most effective class of analgesics is the pure agonist opioids, i.e. drugs such as morphine, hydromorphone, oxymorphone, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	dvm360.com