Chronic obstructive pulmonary disease (COPD) includes two lung conditions—chronic bronchitis and emphysema. More than 12 million people in the United States have COPD (and COPD is the fourth leading cause of death), but another 12 million have COPD without knowing it.
She weighs the risks and benefits of each medication
It’s easy to use and he's happy he switched
This near-death experience finally got him to quit smoking