Knowledge About COVID-19 Among Adults in China: Cross-sectional Online Survey.

J Med Internet Res · 2021 · PMC8086781 · PMID 33844637

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a decreasing trendno p-value reported

However, knowledge about appropriate measures upon the appearance of suspicious symptoms showed a decreasing trend from the eastern wealthier coastal provinces to the western less wealthy inland provinces.

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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.