Department of the Third Abdominal Surgery, Gansu Province Cancer Hospital, 2 Xiaoxihu East Street, Qilihe, Lanzhou 730050, China;
Department of the Third Abdominal Surgery, Gansu Province Cancer Hospital, 2 Xiaoxihu East Street, Qilihe, Lanzhou 730050, China;
Department of General Surgery, Second Hospital of Lanzhou University, Lanzhou 730030, China;
Department of the Third Abdominal Surgery, Gansu Province Cancer Hospital, 2 Xiaoxihu East Street, Qilihe, Lanzhou 730050, China;
Department of the Third Abdominal Surgery, Gansu Province Cancer Hospital, 2 Xiaoxihu East Street, Qilihe, Lanzhou 730050, China;
Department of the Third Abdominal Surgery, Gansu Province Cancer Hospital, 2 Xiaoxihu East Street, Qilihe, Lanzhou 730050, China;