About: http://webisa.webdatacommons.org/16938046

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	In addition, permanent forms of birth control such as tubal ligation have been found to reduce the risk of ovarian cancer by 50 percent.
http://www.w3.org/ns/prov#wasQuotedFrom	nm.org