About: http://webisa.webdatacommons.org/203729509

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	The volunteer is a smoker or having stopped smoking less than 3 months
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov