1 Department of Endoscopy, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China.
2 Department of Endoscopy, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China. [email protected].
3 Department of Oncology, The Second Nanning People's Hospital, Jiangnan District, No.13 Dancun Road, Nanning, 530031, Guangxi, China. [email protected].