Dewan, K., B. Patowary, S. Bhattarai, and G. Shrestha. “Barrett’s Esophagus in Patients With Gastroesophageal Reflux Disease”. Journal of Nepal Health Research Council, Vol. 16, no. 2, July 2018, pp. 144-8, https://www.nepjol.info/index.php/JNHRC/article/view/20300.