COMPARISON OF THE EFFECT OF SILDENAFIL AND TADALAFIL ON PULMONARY HYPERTENSION ASSOCIATED WITH HEMODYNAMICALLY SIGNIFICANT PDAS TREATMENT OF PULMONARY HYPERTENSION IN HS-PDA PATIENTS. Journal of Pharmaceutical Negative Results [Internet]. 2022 Dec. 11 [cited 2026 Jun. 9];:3266-74. Available from: https://mail.pnrjournal.com/index.php/home/article/view/4563