TCM therapies combined with chemotherapy for preventing recurrence and metastasis in postoperative II to IIIA NSCLC: A protocol for a systematic review and meta-analysis

AbstractBackground:Traditional Chinese Medicine (TCM) therapies have been combined with chemotherapy for preventing Recurrence and metastasis in postoperative II to IIIA non-small-cell lung cancer (NSCLC) and the associated better disease-free survival (DFS), but its effects remain elusive. The purp