Research on the transformation from international exhibition to "cloud" exhibition in the post COVID-19 era: A case study of China International Fair for Investment & Trade.

PLoS One · 2022 · PMC9049316 · PMID 35482809

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a decreasing trendno p-value reported

Second, under the comparison of the “Online + Offline” innovation mode, the SE showed a decreasing trend in 2018 and 2019.

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