About: http://webisa.webdatacommons.org/55444630

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	The study found the most frequent users of cannabis have twice the risk of non-users of developing psychotic symptoms, such as hallucinations and delusions.
http://www.w3.org/ns/prov#wasQuotedFrom	bbc.co.uk