A
healthy lung
|
Doctor's Office |
A
smoker's lung
|
These are two illnesses that can affect the respiratory system.
Illness and what is
does How it is
treated How someone gets
it Asthma:
Asthma is a
sickness where... There are 2 main ways
asthma is treated... There are many ways
asthma is triggered... Bronchitis:
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