ABSTRACT Severe asthma (SA) in childhood is infrequent (≈2% of all paediatric asthma), yet it drives a disproportionate share of morbidity and cost. A clear algorithm is required to distinguish difficult‐to‐treat asthma (DTA) from true SA and to guide phenotype‐driven diagnosis and therapy.
Hamelmann et al. (Fri,) studied this question.
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