AUTHOR=Ren Zhuxiao , Fang Xu , Zhang Qi , Mai Y. G. , Tang X. Y. , Wang Q. Q. , Lai C. H. , Mo W. H. , Dai Y. H. , Meng Q. , Wu Jing , Ao Z. Z. , Jiang H. Q. , Yang Yong , Qu L. H. , Deng C. B. , Wei Wei , Li Yongsheng , Wang QI , Yang Jie TITLE=Corrigendum: Use of autologous cord blood mononuclear cells infusion for the prevention of bronchopulmonary dysplasia in extremely preterm neonates: a study protocol for a placebo-controlled randomized multicenter trial [NCT03053076] JOURNAL=Frontiers in Pediatrics VOLUME=11 YEAR=2023 URL=https://www.frontiersin.org/journals/pediatrics/articles/10.3389/fped.2023.1284824 DOI=10.3389/fped.2023.1284824 ISSN=2296-2360