Tangaroonsanti, A., S. Siramolpiwat, V. Mahachai, and R.- korn Vilaichone. “Advances in Management of Esophageal Motility Disorders”. The Bangkok Medical Journal, vol. 13, no. 1, Feb. 2017, p. 76, doi:10.31524/bkkmedj.2017.02.013.