All of the following given statements are true:
COPD stands for Chronic obstructive pulmonary disease. It is the chronic inflammation of the lungs, where the airflow passage that leads the air into the lungs gets blocked.
Chronic Bronchitis is the inflammation particularly of the bronchi. In this there remains persistent coughing for about three months, that reoccurs again after some time.
To know more about chronic bronchitis, here
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