About: http://webisa.webdatacommons.org/15409846

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	These studies found that alcohol and cannabis are the most frequently abused substances
http://www.w3.org/ns/prov#wasQuotedFrom	biomedcentral.com