Breathtaking: New Treatments for a Fatal Lung Disease

After being pumped around all of the arteries, veins and capillaries in the adult human body, the blood refuels with oxygen in the lungs, and then starts the cycle all over again. For patients with pulmonary arterial hypertension, however, the refueling process becomes increasingly obstructed when thickening of the blood vessel wall reduces the volume of blood able to pass through.
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