<http://webisa.webdatacommons.org/prov/318770629>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/93025060> .
<http://webisa.webdatacommons.org/93025060>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<chestnet.org> .
<http://webisa.webdatacommons.org/93025060>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/93025060>	<http://www.w3.org/ns/prov#value>	"First, the exclusion of prevalent cardiovascular or pulmonary disease and other medical conditions allowed for an unconfounded examination of the adverse effects of smoking on sleep architecture." .