About: http://webisa.webdatacommons.org/121539554

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	Prof Lawrence said this was the first study to show that the adenosine A2A receptor was implicated in self-motivation to take opiates such as heroin.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org