Serhat BOR (2019) “Effect of botulinum toxin injection and pneumoticdilatation on lower esophageal sphincter in achalasia”, Turkish Journal of Gastroenterology, 11(1), pp. 6–12. Available at: https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/1669 (Accessed: 8 July 2025).