About: http://webisa.webdatacommons.org/96672128

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	by what is called the species barrier, i.e. the difficulty to establish clinical disease
http://www.w3.org/ns/prov#wasQuotedFrom	biomedcentral.com