Visualizing the knowledge domains and research trends of childhood asthma: A scientometric analysis with CiteSpace.

Front Pediatr · 2022 · PMC9562269 · PMID 36245730

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an increasing trendno p-value reported

However, China, as a developing country, ranked third in terms of the number of publications and showed an increasing trend year by year.

also in 63,971 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.