Asthma is a chronic respiratory condition which constricts and swells up the lun...
It is a fact that the main cause of one of the most common respiratory disorders...
The exact cause of one of the most common respiratory disorders, asthma, is not ...
Asthma is one of the respiratory disorders of the lungs and has a periodic aggra...
The lungs suffer from many diseases, all of which are serious and life threateni...
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