About: http://webisa.webdatacommons.org/346842426

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	As to the drug manufacturers and their employees, the chemists, they always knew about the dangers of heavy atoms, such are found in lead and other heavy metal atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	medical-truths.com