A. Alim, M. Eliçevik, E. R. Alim, Z. Önal, G. Can, and O. F. Şenyüz, “The Investigation of Gastroesophageal Reflux in Children with Portal Hypertention”, Cerrahpaşa Medical Journal, vol. 45, no. 1, pp. 28–32, Feb. 2021.