Phalanusitthepha, C., S. Maneesoi, J. Watthanatha, T. Suwatthanarak, V. Chinswangwatanakul, T. Akaraviputh, A. Methasate, M. Maneerattanaporn, and S. Leelakusolvong. “The Performance of Peroral Endoscopic Myotomy in Sigmoid-Type Achalasia”. Siriraj Medical Journal, vol. 76, no. 9, Sept. 2024, pp. 611-9, doi:10.33192/smj.v76i9.269112.