A multi-centre real-world non-interventional observational study to retrospectively collect the study data on patient demographic/tumor biological characteristics and clinical treatments to compare patient survivals in the N2 patients with non-small cell lung cancer in the subgroups of lymph skip metastases and non-skip metastases.
A study to compare patient survivals in the N2 patients with non-small cell lung cancer in the subgroups of lymph skip metastases and non-skip metastases