About: http://webisa.webdatacommons.org/90242718

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	In mammals and other vertebrates, opioid substances (including enkephalins and endorphins) manufactured in the body can modify nervous transmission in nociception, producing analgesic effects.
http://www.w3.org/ns/prov#wasQuotedFrom	abolitionist.com