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<http://webisa.webdatacommons.org/258129833>	<http://www.w3.org/ns/prov#value>	"FIG. 20A is a side view of a hemispherically shaped balloon for treating avascular necrosis of the head of the femur (or humerus);" .
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<http://webisa.webdatacommons.org/258129833>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .