Fig. 6.

Immunostaining for TGFB2 (A, A', B, B') and TGFBR1 (C, C', D, D') in CCAM (B, B', D, D') and control samples (A, A', C, C') , at magnifications of × 20 (A, C, B, D) and × 40 (A', B', C', D'). Diffuse expression is observed in CCAM epithelium