Tang, M., Gao, X., Sun, H., Tian, S., Dong, J., Liu, Z., et al. (2021). Neutrophil-Lymphocyte Ratio as a Prognostic Parameter in NSCLC Patients Receiving EGFR-TKIs: A Systematic Review and Meta-Analysis. Journal of Oncology, 2021. doi:10.1155/2021/6688346.