About: http://webisa.webdatacommons.org/11005415

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	Drug dependence is a major international public health problem of which opioid dependence, notably involving heroin, is a major component.
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov