About: http://webisa.webdatacommons.org/112752432

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	There is today a great need for rapid and accurate methods of assaying biologically active substances (which may be at low concentrations), particularly in body fluids such as blood, saliva or urine.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es