Chopra, S., R. Engineer, A. S. Mathew, S. Mehta, V. Ostwal, M. Goel, K. Rajamanickam, P. Patil, S. Gupta, N. Shetty, S. Kannan, A. Polnaya, S. Patkar, V. Rangarajan, A. Agarwal, M. Ramadwar, S. Shrikhande, K. Joshi, E. Dandpani, and S. K. Shrivastava. “Protocol for a Phase III Randomized Trial of Chemoradiation and Systemic Chemotherapy Vs. Systemic Chemotherapy Alone in Patients With Unresectable Nonmetastatic Cholangiocarcinoma”. International Journal of Clinical Trials, vol. 4, no. 1, Jan. 2017, pp. 14-19, doi:10.18203/2349-3259.ijct20170303.