Study population and background characteristics related to childhood asthma (diagnosis and > = 2 medications) in a Swedish cohort of 211,520 children aged 0–4.5 years.
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*n (%) indicated the frequency and percentage for relevant subgroups, unless otherwise specified.Study population and background characteristics related to childhood asthma (diagnosis and > = 2 medications) in a Swedish cohort of 211,520 children aged 0–4.5 years.
创建时间：
2015-12-02
