About: http://webisa.webdatacommons.org/228680402

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	Typical examples of such signal substances are the cellular messengers of the endothelial and circulating blood cells such as e.g. CD1, CD2, CD6, CD8, CD16, tumor necrosis factor (TNF) etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca