About: http://webisa.webdatacommons.org/31115465

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	Many types of ligand-receptor assays have been used to detect the presence of various substances, often generally called ligands, in body fluids such as blood, urine, or saliva.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com