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Axonal advillin expression in sympathetic target tissues. A, Mouse skin. Note colocalization between TH and advillin around a blood vessel (bv). A fasciculated nerve bundle (nb) is also apparent. B, C, Whole-mount rat iris. B, Corneal surface of the iris showing heavily-innervated bv and ChAT-positive nbs. C, Lens surface of the iris showing sympathetic and parasympathetic innervation of the dilator and constrictor muscles, respectively.
