About: http://webisa.webdatacommons.org/335378979

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	Heparin is a complex drug, which is used beyond the reach of chemical synthesis and can only be obtained from sources such as the intestines and lungs of pigs and cattle.
http://www.w3.org/ns/prov#wasQuotedFrom	biospace.com