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Expression of TRα1 in human TMA of colorectal samples. (A) Immunohistochemical analysis of TRα1 expression in a CRC cohort of patients with different indicated tumor stages (I, II, III, and IV) and in the normal colon. Scale bar: 200 μm (low magnification), 100 μm (medium magnification), 50 μm (high magnification). (B) Scoring of TRα1 protein levels: −, negative; +/−, low; +, positive; ++, highly positive. The scoring was performed independently by two individuals.
