H. Q. Muhammad Amir, O. Ikram, M. T. Zia, F. K. Theba, N. Ikram, and A. Tariq, “Helicobacter pylori infection among type 2 diabetics: a case control study”, Int J Res Med Sci, vol. 8, no. 3, pp. 1047–1050, Feb. 2020.