rs73302038 (chr17:g.21215682 G>A) in mitogen-activated protein kinase kinase 3 (MAP2K3), which was associated with resistance to VCR, showed the strongest association for the gastric cancer subgroup (P = 8.32 × 10−6, rs = 0.935, Table 12). The gene discussed is MAP2K3; the disease is gastric cancer.