Answer:
chronic obstructive pulmonary disease(COPD)
asthma.
occupational lung diseases, such as black lung.
pulmonary hypertension.
cystic fibrosis.
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Answers & Comments
Answer:
chronic obstructive pulmonary disease(COPD)
asthma.
occupational lung diseases, such as black lung.
pulmonary hypertension.
cystic fibrosis.