1 Department of Oncology, The Second Nanning People's Hospital, No. 13 Dancun Road, Jiangnan District, Nanning, 530031, Guangxi, China.
2 Department of Oncology, The Second Nanning People's Hospital, No. 13 Dancun Road, Jiangnan District, Nanning, 530031, Guangxi, China. hcj1215423068@hotmail.com.
3 Department of Endoscopy, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China. weilininggudy@163.com.