Ashraf, Shahzad, Imtiaz Ahmed Khan, and Waheed ur Rehman Khan. 2023. “Echocardiography As a Screening Modality for Portopulmonary Hypertension in Patients With Cirrhosis and Chronic Viral Hepatitis”. Pakistan Armed Forces Medical Journal 73 (5): 1279-83. https://doi.org/10.51253/pafmj.v73i5.6395.