Yang, Y., Xu, H., Zhou, L., Deng, T., Ning, T., Liu, R., … Ba, Y. (2018). Platelet to lymphocyte ratio is a predictive marker of prognosis and therapeutic effect of postoperative chemotherapy in non-metastatic esophageal squamous cell carcinoma. Clinica Chimica Acta; International Journal of Clinical Chemistry. https://doi.org/10.1016/j.cca.2018.01.013 (Original work published 2018)