Laboratory of Surgery;
the Affiliated Hospital of Inner Mongolia Medical University;
Hohhot 010050;
China;
Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing);
Center for Molecular Diagnosis;
Peking University Cancer Hospital & Institute;
Beijing 100142;
China;
Department of Medical Oncology;
the Affiliated Hospital of Inner Mongolia Medical University;
Hohhot 010050;
China;
Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing);
Tissue Bank;
Peking University Cancer Hospital &Institute;
Beijing 100142;
China;
Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing);
Department of Gastrointestinal Surgery;
Peking University Cancer Hospital & Institute;
Beijing 100142;
China;