In the article by Malik et al, “Cell‐Free Mitochondrial DNA as a Potential Biomarker for Astronauts’ Health”, which published online October 20, 2021 (J Am Heart Assoc. 2021;10:e022055. DOI: 10.1161/JAHA.120.022055) and was included in the November 2, 2021 issue of the journal, a correction was needed.

A footnote regarding equal contribution of the first authors was omitted in the article. The following footnote has now been added to page 1 of the article: M. Bisserier and S. Shanmughapriya contributed equally and are co‐first authors. Asterisks have been added in the byline to identify these authors.

The authors regret the error.

The online version of the article has been updated and is available here: https://www.ahajournals.org/doi/10.1161/JAHA.121.022055.

在 Malik 等人的文章“无细胞线粒体 DNA 作为宇航员健康的潜在生物标志物”中，该文章于 2021 年 10 月 20 日在线发表（J Am Heart Assoc . 2021;10:e022055. DOI: 10.1161/JAHA.120.022055 ) 并被收录在 2021 年 11 月 2 日的期刊中，需要更正。

文章中省略了关于第一作者同等贡献的脚注。以下脚注现已添加到文章的第 1 页：M. Bisserier 和 S. Shanmughapriya 贡献相同，并且是共同第一作者。署名中添加了星号以识别这些作者。

作者对这个错误感到遗憾。

文章的在线版本已更新，可在此处获取：https://www.ahajournals.org/doi/10.1161/JAHA.121.022055。