About: http://webisa.webdatacommons.org/43233207

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	It suggests that over time the drugs have gotten more potent for reasons other than chemistry.
http://www.w3.org/ns/prov#wasQuotedFrom	psychrights.org