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Chronic Obstructive Pulmonary Disease
Chronic obstructive pulminary disease (COPD) is a respiratory problem that makes breathing difficult.
 
   
   
 
   
   
   
 
   
   
Home > Medicine > Respiratory > Chronic Obstructive Pulmonary Disease
 
 
 
 
 
 
 
 
 
 
 
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