About: http://webisa.webdatacommons.org/409533978

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	They found that patients who would begun using heroin back in the 1960s were mostly men who would chosen heroin as their first drug of abuse -- usually as teenagers.
http://www.w3.org/ns/prov#wasQuotedFrom	harperhutzel.org