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Experimental design and study road map. (A) Number of study samples (TD, tumor from diabetic patients; T, tumor from nondiabetic patients; ND, normal colonic mucosa from diabetic patients; N, normal colonic mucosa from nondiabetic patients) and studies performed. Comparisons performed between samples are noted by bidirectional arrows. Boxes indicate the biological aspect explored by each comparison. (B) Study road map.
