Raffaele Borghini, et al. “In Extremis Diagnosis of Celiac Disease and Concomitant Wheat Allergy”. Turkish Journal of Gastroenterology, vol. 29, no. 4, July 2019, pp. 515-7, https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/3576.