Nessa, Azizun, et al. “Evaluation of 105 Cases of Dyspepsia by Upper Gastrointestinal Endoscopy and Ultrasonography of Hepatobiliary System in a Rural Setting”. Journal of Armed Forces Medical College, Bangladesh, vol. 11, no. 2, Jan. 2019, pp. 25-29, doi:10.3329/jafmc.v11i2.39819.