Understanding COPD Stages & Progression |

cop4dChronic obstructive pulmonary disease (COPD) is estimated to affect 32 million persons in the United States and is the third leading cause of death in this country. Patients typically haveChest and lungs. How to live healthily with COPD. In the UK, 1.2 million people are affected by chronic obstructive pulmonary disease (COPD)