About: http://webisa.webdatacommons.org/340332398

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	Vomiting and straining, endoscopic procedures and bleeding disorders are the most common predisposing factors.
http://www.w3.org/ns/prov#wasQuotedFrom	science.gov