About: http://webisa.webdatacommons.org/383721918

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 women were asked to record their intake of vitamins, minerals and other supplements according to the ingredient lists on the supplement containers, within 4-week intervals from before the start of pregnancy.
http://www.w3.org/ns/prov#wasQuotedFrom	pubmedcentralcanada.ca