Ali Q, Akhtar Ali khan, Muhammad Zeeshan, Hafiz Muhammad Mudasir, Farid Ullah, Farhan Shahzad. FREQUENCY OF PULMONARY HYPERTENSION IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE PRESENTING AT TERTIARY CARE HOSPITAL. IJHR. 2025;3(2 (Health & Rehab):334-340. doi:10.71000/b5ky7h76