HIF1A and neoplasm: In addition to identifying benign gastric disease, to further determine the hypoxic condition in malignant gastric mucosal lesions, we collected clinical GC tissues and established a SGC7901 mouse gastric graft tumour model, and the related results revealed similar changes in hypoxia and localised nuclear expression of HIF‐1α in cancerous tissues but not in normal gastric mucosa (Figure 1E‒G).