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(a) A DAC microendoscope is passed through the instrument channel of an Olympus XT-160 endoscope that has a 6-mm diameter instrument channel. (b) Distal end of an endoscope showing the protruding DAC microendoscope; . (c) Cropped reflectance image of a 1951 United States Air Force resolution test chart collected using the DAC microendoscope. Shows a transverse resolution of 5 μm; .
