| http://www.w3.org/ns/prov#value | - the other fingers grasp the handle and this makes the operation of disengaging the teeth difficult, especially where fluids and moisture are present in the operating area. [0015] It is therefore possible that the doctor or surgeon, whose hands are normally covered in blood and other body fluids, will be unable to operate the slider easily and will be forced to ask for help or to use the other hand
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