About: http://webisa.webdatacommons.org/427668894

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	METHODS: 609 injection drug users recruited in Rio de Janeiro between 1999 and 2001 answered a questionnaire and were tested for hepatitis B and other blood-borne infections.
http://www.w3.org/ns/prov#wasQuotedFrom	scielosp.org