AL-Kinani, Alaa A. Abbood. “Clinical Study of Patients With Primary Pulmonary Hypertension (PPH)”. Journal of the Faculty of Medicine Baghdad 60, no. 2 (September 2, 2018): 80–84. Accessed May 3, 2024. https://iqjmc.uobaghdad.edu.iq/index.php/19JFacMedBaghdad36/article/view/9.