About: http://webisa.webdatacommons.org/366751126

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	An ulcer is an opening in the lining of the stomach or in the duodenum (the first part of the small intestine).
http://www.w3.org/ns/prov#wasQuotedFrom	aafp.org