About: http://webisa.webdatacommons.org/239709814

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	Current smoking was defined based on a positive response to the question Do you currently smoke any tobacco products such as cigarettes, cigars, or pipes?.
http://www.w3.org/ns/prov#wasQuotedFrom	biomedcentral.com