Sachin K. Dhande, Chandrasekar Murugesan, and Anbalagan Pichaimuthu. “Etiology and Endoscopic Profile of Dysphagia in Adults - Single Center Study at a Tertiary Care Center in South India. ”. International Journal of Medical Research and Review, Vol. 9, no. 6, Jan. 2022, pp. 368-73, https://ijmrr.medresearch.in/index.php/ijmrr/article/view/1345.