Comparative study of concomitant chemoradiation versus concomitant chemoradiation followed by high-dose-rate intraluminal brachytherapy in locally advanced esophageal carcinoma: a single institutional study - Halder, Anirban; Biswas, Rituparna; Ghosh, Anshuman; Dastidar, Aloke Ghosh (Journal of Contemporary Brachytherapy, 2018)