About: http://webisa.webdatacommons.org/125234069

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	Opioids include drugs such as morphine and codeine, which are most often used for acute pain, and may be given immediately following surgery.
http://www.w3.org/ns/prov#wasQuotedFrom	medcentral.org