Research on the impact of COVID-19 on Chinese small and medium-sized enterprises: Evidence from Beijing. Ma Z, Liu Y, Gao Y. PLoS One 2021;16:e0257036.

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Ma Z, Liu Y, Gao Y. Research on the impact of COVID-19 on Chinese small and medium-sized enterprises: Evidence from Beijing. PLoS One 2021;16:e0257036.
PMID: 34882688