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<http://webisa.webdatacommons.org/prov/286112164>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/435075527> .
<http://webisa.webdatacommons.org/435075527>	<http://www.w3.org/ns/prov#value>	"No. 10/935,730, filed Sep. 7, 2004, a valve stent having flared ends, or an adapter stent or valve stent provided with hooks, barbs or other interconnecting mechanisms might be employed." .
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