Different Methods of Capecitabine in Patients With Non-PCR After Neoadjuvant Therapy for TNBC

Inclusion Criteria

• •1\) Patients with triple negative breast cancer diagnosed by biopsy in Peking University People's Hospital;
• •2\) The clinical stages before treatment were T1-T4, N0-N3, M0;
• •3\) Received treatment and operation in our hospital, and had hospitalization records;
• •4\) Neoadjuvant chemotherapy is unlimited, and immunotherapy is allowed in neoadjuvant and/or adjuvant treatment;
• •5\) Postoperative pathology confirmed the presence of residual invasive breast cancer in the breast and/or axillary lymph nodes;
• •6\) Has signed and agreed to participate in the PKUPH breast disease cohort study.