| http://www.w3.org/ns/prov#value | - on du corps humain ; As is currently known preference goes to the stainless metals: stainless steel, titanium alloy or other high strength metals, resistant to corrosion of the human body; les mat???riaux composites de haute r???sistance et biologiquement compatibles peuvent ???tre ???galement envisag???s. composite materials of high strength, biologically compatible may also be envisaged.
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