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. 2020 Jul 11;93(1):528–532. doi: 10.1002/jmv.26235

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© 2020 Wiley Periodicals LLC

This article is being made freely available through PubMed Central as part of the COVID-19 public health emergency response. It can be used for unrestricted research re-use and analysis in any form or by any means with acknowledgement of the original source, for the duration of the public health emergency.

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A, Comparison of serum concentration of MMP3 between the COVID‐19 infected group and noninfected group. Box above with the median as a line shows the distance between the quartiles, and the maximum and minimum values of MMP3 were presented by the whiskers. Outliers are displayed as separate points. P values show that there was a significant difference between the groups. B, Changes of serum MMP3 concentration in novel coronavirus patients during hospitalization. The interval of each test was 5 days, and a total of three times were tested. Box above with the median as a line shows the distance between the quartiles, and the maximum and minimum values of MMP3 were presented by the whiskers. Outliers are displayed as separate points. COVID‐19, coronavirus disease 2019; MMP, matrix metalloproteinase