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Camera lucida reconstruction of DAB-stained neocortical blood vessels. Photomicrograph (A) and camera lucida drawing (B) of a blood vessel. Arrows point to vessel branches of varying branch order. Pink: 2nd order, Black: 3rd order, Blue: 4th order, Red: 5th order, Green: 6th order. Scalebars in microns: A, 125, B, each division 10.
