M. Alam, M. I. S. Ansari, A. . Shehzad, M. I. Shehzad, M. Ramzan, and M. A. Mushtaq, “Prevalence of pulmonary hypertension among the patients diagnosed of Interstitial Lung Disease”, Pak J Chest Med, vol. 29, no. 4, pp. 457–461, Dec. 2023.