Baral, S.; Paudel, B. N.; Khanal, A.; Thapa, J.; Yadhav, B.; Shrestha, R.; Basnet, B. K.; Paudel, M. S.; Thapa, S.; Khadka, D. Outcome of Pneumatic Balloon Dilatation in Achalasia Cardia. J Adv Intern Med 2021, 10, 8-13.