MTOR and rectal cancer: Representative immunohistochemistry staining of mTOR (Fig. 1A, B, G, H), p-mTOR (Fig. 1C, D, I, J) and programmed death ligand 1 (PD-L1) (Fig. 1E, F, K, L) of the pre-neoCRT tissues and post-neoCRT biopsies in locally advanced rectal cancer.