This method focused on collecting mutations in several key genes associated with non-hypermutated colon tumors, including APC, TTN, TP53, KRAS, MUC16, MUC5B, PIK3CA, BRAF, SOX9, RYR1, RYR2, RYR3, FBXW7, ARID1A, COL5A1, COL6A3, KIAA019, and PCDH17 for all locations cumulatively, and for the distinct locations one by one. Here, COL5A1 is linked to colonic neoplasm.