Cem Şİmşek (2020) “Considering the first randomized trial of peroral endoscopic myotomy versus surgical myotomy for achalasia”, Turkish Journal of Gastroenterology, 31(2), pp. 190–192. Available at: https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/3864 (Accessed: 8 July 2025).