https://www.healthcentral.com/article/what-is-bullous-emphysema
EmphysemaRisk Factors

What Is Bullous Emphysema?

Doctor with model of lungs.
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    John Bottrell

    John Bottrell

    John Bottrell is a registered Respiratory Therapist. He wrote for HealthCentral as a health professional for Asthma and Chronic Obstructive Pulmonary Disease (COPD).