Department of General Surgery,Renji Hospital,Shanghai Jiaotong University School of Medicine;
Department of General Surgery,Suzhou Jiulong Hospital,Shanghai Jiaotong University School of Medicine;
Department of Pathology,Renji Hospital,Shanghai Jiaotong University School of Medicine;
Gastric; cancer; Human; epidermal; growth; factor; receptor; 2; Gene; amplification; Protein; expression; Clinicopathological; characteristics;