A. Kemal GÜRBÜZ, et al. “A Comparative Study in Grade-1 Reflux Esophagitis: High Dose Ranitidine Versus Conventional Dose Ranitidine Combined With Cisapride”. Turkish Journal of Gastroenterology, vol. 6, no. 1, Apr. 2020, pp. 75-78, https://tjg.avesjournals.com/index.php/tjg/article/view/1064.