“Comparison Of External Beam Radiotherapy Followed By Intra-Luminal Brachytherapy With External Beam Radiotherapy Alone In Locally Advanced Carcinoma Of Esophagus”. (2017) International Journal of Scientific Research and Management (IJSRM), 5(12), pp. 7644–7651. doi:10.18535/ijsrm/v5i12.11.