<p>(A) Negative expression of TGF-β1 in BC (×200). (B) Weak expression of TGF-β1 in BC (×200). (C) Strong expression of TGF-β1 in BC (×200). (D) Negative expression of CCL22 in BC (×200). (E) Weak expression of CCL22 in BC (×200). (F) Strong expression of CCL22 in BC (×200).</p