About: http://webisa.webdatacommons.org/22020189

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	There is a long-standing hypothesis that the increase of lung cancer in Asian never-smokers is due to environmental factors such as second-hand smoke.
http://www.w3.org/ns/prov#wasQuotedFrom	science.gov