About: http://webisa.webdatacommons.org/227539215

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 test compound is preferably added to wells prior to the addition of IgE, but can also be added after the addition of IgE and before the addition of antigen, or after the addition of IgE and antigen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com