Fig. 1From: Activation and overexpression of the aryl hydrocarbon receptor contribute to cutaneous squamous cell carcinomas: an immunohistochemical studyAHR and CYP1A1 in normal skin. a Weak positive AHR immunoreactivity with a cytoplasmic pattern in epidermis. b Weak CYP1A1 immunoreactivity with a cytoplasmic pattern in epidermis. (immunoperoxidase ×200)Back to article page