Symptoms of long-term chronic bronchitis
For chronic bronchitis, the onset is slow and the course of disease is long, which lasts for three months or more every year for two years or more, and other diseases such as cough and expectoration are excluded. Typical symptoms include cough and expectoration or wheezing and shortness of breath. Chronic bronchitis is one of the common diseases of respiratory tract, with a long onset time and a long course of disease.
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