(StatePoint) Each year, 500 to 1,000 people in the United States are diagnosed with pulmonary arterial hypertension (PAH), a rare lung disease that can be fatal if left untreated.

To encourage earlier diagnosis of , the American Lung Association, with support from Johnson & Johnson, is sharing information about the disease, its symptoms, and the importance of testing and proper treatment. Here’s what the Lung Association wants you to know:

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