About: http://webisa.webdatacommons.org/368510487

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 fact that there is a link does not prove cause.Studies show that people using crack or heroin have almost without exception used Marijuana first.Chance association or real culprit?
http://www.w3.org/ns/prov#wasQuotedFrom	globalchange.com