About: http://webisa.webdatacommons.org/6562815

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	Until now, the effects of airborne contaminants on the lungs have been assessed by forcing rats or other animals to inhale specific concentrations of chemicals for certain periods of time.
http://www.w3.org/ns/prov#wasQuotedFrom	pcrm.org