Department of General Surgery;
Nanfang Hospital;
Southern Medical University;
Guangzhou 510515;
Guangdong Province;
China;
Department of General Surgery;
Dongguan People’s Hospital;
Dongguan 523000;
Guangdong Province;
China;
Staging; laparoscopy; Advanced; gastriccancer; Tumor; staging; Peritoneal; metastasis; Riskfactor;