<http://webisa.webdatacommons.org/8279359>	<http://www.w3.org/ns/prov#value>	"The pore sizes of conventional implant materials composed mainly of Al2 O3 are controlled in order to improve their affinity with cells or tissues, but their chemical bondability to the living tissues is extremely poor." .
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<http://webisa.webdatacommons.org/prov/140842749>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/8279359> .
<http://webisa.webdatacommons.org/8279359>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .