About: http://webisa.webdatacommons.org/337941996

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	After ruling out a major issue like pregnancy or a hormonal deficiency, the most common reason is a failure to ovulate.
http://www.w3.org/ns/prov#wasQuotedFrom	uc.edu