In the article “Breast cancer immunology and immunotherapy: targeting the programmed cell death protein-1/programmed cell death protein ligand-1” which appeared in vol. 133, issue 7, page 853 of Chinese Medical Journal,[ the authors “Jing Zhao1,2, Jian Huang2,3” should be corrected as “Jing Zhao1, Jian Huang2”, and their affliations “2Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, Hangzhou, Zhejiang 310009, China; 3Department of Breast Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China” should be corrected as “2Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, Department of Breast Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China”.