About: http://webisa.webdatacommons.org/73069400

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	They are not visible on imagining equipment, such as CT scans or ultrasounds, and most physicians have difficulty diagnosing them through a pelvic examination.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com