Comparison Of External Beam Radiotherapy Followed By Intra-Luminal Brachytherapy With External Beam Radiotherapy Alone In Locally Advanced Carcinoma Of Esophagus. int.jour.sci.res.mana 2017, 5 (12), 7644-7651. https://doi.org/10.18535/ijsrm/v5i12.11.