About: http://webisa.webdatacommons.org/41311041

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	Sickle-cell anemia, reactivation of viral infections such as Epstein-Barr and Varicella infections, and cystic fibrosis also have been identified as secondary causes of upper GI ulcers.
http://www.w3.org/ns/prov#wasQuotedFrom	pediatriceducation.org