<http://webisa.webdatacommons.org/99179882>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/prov/429077337>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/99179882> .
<http://webisa.webdatacommons.org/99179882>	<http://www.w3.org/ns/prov#value>	"Examples of the types of sounding apertures or surfaces which may be formed on the body of the catheter 100 or tissue-penetrating element 102 to enhance visualization thereof by an active imaging device 50 are described in U.S. Pat. No. 4,977,897 (Hurwitz)." .
<http://webisa.webdatacommons.org/prov/343170036>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/99179882> .
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