About: http://webisa.webdatacommons.org/139915205

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	Studied have shown long term use impairs cognitive abilities such as ability to concentrate , increased anxiety.
http://www.w3.org/ns/prov#wasQuotedFrom	drugs-forum.com