Department of General Surgery People’s Hospital of Tibet Autonomous Region Lasa 850000 Tibet Autonomous Region China;
Department of Internal Medicine The Tibet Autonomous Region Centers for Disease Control and Prevention Lasa 850000 Tibet Autonomous Region China;
Department of General Surgery People’s Hospital of Tibet Autonomous Region Lasa 850000 Tibet Autonomous Region China;
Minimally invasive surgery; Laparotomy; High-altitude area; Colon cancer; Surgical trauma; Immune dysfunction;