Kumar K.N., P., A. L., I. Yadav, A. Tyagi, and L. K. C. “Efficacy of Chemo-Radiotherapy Versus Radiotherapy Alone in the Treatment of Esophageal Carcinoma”. International Journal of Medical Research and Review, Vol. 7, no. 5, Oct. 2019, pp. 370-9, doi:10.17511/ijmrr.2019.i05.05.