About: http://webisa.webdatacommons.org/355854339

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	Before suffering brain damage, mostly from stroke, all the participants had been long-term, heavy cigarette smokers; on average, they had smoked a pack and a half a day for 27 years.
http://www.w3.org/ns/prov#wasQuotedFrom	drugabuse.gov