Pulmonary Veno-Occlusive Disease |
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| Pulmonary Veno Occlusive Disease; Disease, Pulmonary Veno-Occlusive; Diseases, Pulmonary Veno-Occlusive; Pulmonary Veno-Occlusive Diseases; Veno Occlusive Disease, Pulmonary; Veno-Occlusive Diseases, Pulmonary | |
| Obstruction of the small- and medium-sized pulmonary veins by fibrous proliferation of the intima and media or by thrombosis or a combination of both. | |