About: http://webisa.webdatacommons.org/450361226

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	in the study, such as HIV testing, hepatitis and other vaccinations, opioid substitution
http://www.w3.org/ns/prov#wasQuotedFrom	biomedcentral.com