<http://webisa.webdatacommons.org/prov/491407767>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/44413716> .
<http://webisa.webdatacommons.org/44413716>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/44413716>	<http://www.w3.org/ns/prov#value>	"We were unable to stratify the study sample by racial and ethnic groups besides non-Latino whites, Latinos, and other races because of small cell sizes." .
<http://webisa.webdatacommons.org/44413716>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<pubmedcentralcanada.ca> .