Daniel France Risa H and David Kevin Graham Lesnussa, “The Efficacy of Pharmacological Interventions in Pulmonary Arterial Hypertension (WHO Group 1): A Systematic Review of Randomized Controlled Trials”, the int. j. of med. science and health, vol. 16, no. 8, pp. 73–111, Sep. 2025, doi: 10.70070/hkydpg25.