1. Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
2. Department of Immunology, School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
3. Department of Thoracic Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China