Pulmonary Artery Vasa Vasorum Damage in Severe COVID-19-Induced Pulmonary Fibrosis.

In addition, the vasa vasorum lumen area percentage of the COVID-19 patient specimens appeared slightly higher than that of the normal cohort but did not reach statistical significance ( Figure 1 F; 1.33% ± 0.39% vs 0.93% ± 0.17%; P = .29).

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