About: http://webisa.webdatacommons.org/439022394

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 person might need blood if they have been in a bad accident, had surgery that caused blood loss, or have a certain disease, such as cancer or sickle cell anemia.
http://www.w3.org/ns/prov#wasQuotedFrom	sanfordhealth.org