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Microphotographs of iNOS immunostaining of the DRG. Microphotographs of iNOS immunostaining of the right DRGs of sham-operated rats treated with 1% ethanol in saline (vehicle for melatonin) (a), CCI animals treated with 1% ethanol in saline (vehicle for melatonin) (b), and CCI animals treated with melatonin 10 mg/kg (c). Arrows indicate small neurons. Bar = 40 μm.
