diagnosis of asthma should be clearly established and the baseline severity of the disease classified to help establish the recommended course of therapy. Alternative diagnoses of symptoms that suggest asthma, including conditions affecting the upper and lower airways (e.g., upper airway obstruction/foreign body, bronchitis, pneumonia/bronchiolitis, chronic obstructive pulmonary disease, tumour/neoplasm, pulmonary embolism, congestive heart failure, vocal cord dysfunction, or viral lower respiratory…
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