About: http://webisa.webdatacommons.org/61628438

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	The data permit a prospective look at the control of unintended fertility during the late 1980s, and enable us to compare our findings with analyses that have relied on retrospective reports.
http://www.w3.org/ns/prov#wasQuotedFrom	guttmacher.org