Muhammad Hanif1 , Naveed Ahmed Brohi2 , Safdar Ali Jamali3 , Muhammad Azhar4 , Mir Tahir Hussain Talpur5 , Mukhtyar Ahmed Abro6, “PULMONARY HYPERTENSION IN PATIENTS WITH IDIOPATHIC PULMONARY FIBROSIS BY USING ECHO CARDIOGRAPHY”, JPUMHS, vol. 12, no. 4, pp. 21–26, Dec. 2022.