About: http://webisa.webdatacommons.org/24173779

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	A positive control is a quality control sample containing the target analyte(s) and is subjected to all sample-processing operations.
http://www.w3.org/ns/prov#wasQuotedFrom	fbi.gov