<http://webisa.webdatacommons.org/383846538>	<http://www.w3.org/ns/prov#value>	"The effectiveness of advice to women to take folic acid supplements is limited, mainly because 50% of pregnancies are unplanned." .
<http://webisa.webdatacommons.org/383846538>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/383846538>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<biomedsearch.com> .
<http://webisa.webdatacommons.org/prov/42783264>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/383846538> .