Asthma and chronic obstructive pulmonary disease (COPD) are chronic respiratory (lung) diseases that cause breathing difficulty and coughing. Asthma affects about 28 million people in the United ...
There are many types of respiratory diseases, such as COPD, asthma, and obstructive sleep apnea. Smoking and exposure to certain substances are common risk factors. Respiratory diseases are conditions ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback