About: http://webisa.webdatacommons.org/342991756

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	Also featured in the invention are kits for determining the concentration of a heavy metal such as lead in the oral fluid.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com