Himmet Haluk Akar, et al. “Eosinophilic Esophagitis in a Girl With Pollen Allergy Who Showed Trachealization”. Turkish Journal of Gastroenterology, vol. 26, no. 1, July 2019, pp. 69-70, https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/3096.