Shaista Ahmed, et al. “Frequency of H. Pylori in Liver Cirrhosis Patients With Overt Hepatic Encephalopathy at Tertiary Care Hospital, Karachi”. International Journal of Endorsing Health Science Research, vol. 10, no. 3, July 2022, pp. 343-8, doi:10.29052/IJEHSR.v10.i3.2022.343-348.