<http://webisa.webdatacommons.org/218384066>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/218384066>	<http://www.w3.org/ns/prov#value>	"The metals, in particular the transition metals, may play a key role in determining the toxicity of ultrafine particles." .
<http://webisa.webdatacommons.org/218384066>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<pubmedcentralcanada.ca> .
<http://webisa.webdatacommons.org/prov/371382427>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/218384066> .