Salam, B, et al. “A Comparative Treatment Results of Oesophageal Squamous Cell Carcinoma by Neoadjuvant Chemotherapy Followed by Radiotherapy Versus Radiotherapy Alone”. Journal of Medicine, vol. 8, no. 2, Oct. 2008, pp. 60-63, doi:10.3329/jom.v8i2.1409.