Asthma a big problem | Types of asthma
Asthma is a growing worldwide problem. Asthma is classified in various ways. Traditionally, doctors have categorised asthma into two general groups, Extrinsic (allergic) asthma and Intrinsic (non-allergic) asthma, depending upon the types of stimuli that flare up these attacks.
Extrinsic (allergic) …
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