<http://webisa.webdatacommons.org/prov/264690074>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/298273090> .
<http://webisa.webdatacommons.org/298273090>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<pubmedcentralcanada.ca> .
<http://webisa.webdatacommons.org/298273090>	<http://www.w3.org/ns/prov#value>	"Personal characteristics such as age, sex, and ethnicity were obtained from demographic data reported by the parent cohorts." .
<http://webisa.webdatacommons.org/298273090>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .