| http://www.w3.org/ns/prov#value | - A method of directing a guidewire to a target location within the ear, nose, throat or cranium of a patient is provided, including the steps of: inserting an illuminating guidewire internally of the patient; emitting light from a distal end portion of the guidewire; and tracking movements of the distal end portion of the guidewire by tracking movements of an illumination spot visible externally of
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