Characteristics of childhood allergic diseases in outpatient and emergency departments in Shanghai, China, 2016-2018: a multicenter, retrospective study.

BMC Pediatr · 2021 · PMC8447671 · PMID 34535106

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an increasing trendno p-value reported

An epidemiological study from the United States documented an increasing trend in the prevalence of asthma with age [ 12 ].

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