| Primary pulmonary hypertension | Pulmonary hypertension primary | Associated with (APAH) | Idiopathic (IPAH) | Pulmonary arterial hypertension | Associated with pulmonary arterial hypertension | Idiopathic pulmonary arterial hypertension | Secondary pulmonary arterial hypertension | Pulmonary arterial hypertension WHO functional class III | Pulmonary arterial hypertension WHO functional class IV | Pulmonary arterial hypertension WHO functional class I | Pulmonary arterial hypertension WHO functional class II | Toxic pulmonary arterial hypertension | Drug and toxin-induced pulmonary arterial hypertension | Familial Primary Pulmonary Hypertension | Heritable Pulmonary Arterial Hypertension | Pulmonary Hypertension, Primary, Fenfluramine-Associated | Pulmonary Hypertension, Primary, Dexfenfluramine-Associated | Idiopathic Pulmonary Arterial Hypertension | Primary Pulmonary Hypertension | Hypertension, Primary Pulmonary | Hypertensions, Primary Pulmonary | Primary Pulmonary Hypertensions | Pulmonary Hypertension, Primary | Pulmonary Hypertensions, Primary | Idiopathic Pulmonary Hypertension | Hypertension, Idiopathic Pulmonary | Hypertensions, Idiopathic Pulmonary | Idiopathic Pulmonary Hypertensions | Pulmonary Hypertension, Idiopathic | Pulmonary Hypertensions, Idiopathic | Pulmonary Hypertension, Primary, 1 | Pulmonary Hypertension, Primary, 1, With Hereditary Hemorrhagic Telangiectasia | Pph1 With Hht | Hht, Pph1 With | Hhts, Pph1 With | Pph1 With Hhts | With Hht, Pph1 | With Hhts, Pph1 |
