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Nuclear VDR expression is negatively related to STAT3 hyperphosphorylation in PTC patients. A, The expressions of VDR were examined by immunohistochemical staining in PTC and non‐cancer tissues of patients at 200× and 400× magnification. B, The expressions of p‐STAT3 were examined by immunohistochemical staining in PTC and non‐cancer tissues of patients at 200× and 400× magnification. Scale bar 50 or 25 μm
