Gupta, Vishal, Subash Bhardwaj, and Opinder Kumar Bhagat. 2017. “Pattern of Esophageal Cancer in Tertiary Care Hospital in North India: A Clinicopathological Study”. International Journal of Research in Medical Sciences 5 (4):1405-9. https://doi.org/10.18203/2320-6012.ijrms20171235.