Tutuian, R. (2006) “Update in the Diagnosis of Gastroesophageal Reflux Disease”, Journal of Gastrointestinal and Liver Diseases, 15(3), pp. 243–247. Available at: https://www.jgld.ro/jgld/index.php/jgld/article/view/2006.3.6 (Accessed: 15 August 2026).