Chronic obstructive pulmonary disease (COPD), sometimes called chronic obstructi...
COPD or Chronic Oppressive Pulmonary Disorder is not a single condition. It simp...
Oxygen therapy for COPD is more than 60-70 years old. In this long period, a vas...
The respiratory function is carried out by specialized organs. These organs cons...
What is Chronic Bronchitis Cough? Bronchitis is the inflammation of the airways ...
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