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<http://webisa.webdatacommons.org/234265537>	<http://www.w3.org/ns/prov#value>	"For example, materials such as polyvinyl chloride (PVC) that are normally used to make endotracheal tubes absorb infrared energy from the laser if the laser beam happens to strike the tube." .
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<http://webisa.webdatacommons.org/prov/329943054>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/234265537> .