About: http://webisa.webdatacommons.org/145337736

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	Several recent observational studies suggest that this is not the case???The evidence that smoking cannabis leads to features of chronic obstructive pulmonary disease, such as airflow obstruction and emphysema is not convincing.
http://www.w3.org/ns/prov#wasQuotedFrom	nutritionfacts.org