AUTHOR=Xia Lijuan , Shao Jinjin , Yang Qian , Zhang Chengda , Xie Zhiqi , Wang Linying , Xu Cong , Zhang Siming , Liu Jing , Liu Fang , Shi Yuhua , Gu Liqiang , Lin Xiaobo , Wang Jiahong , Chen Ying , Chen Yunxiang , Pan Xin , Wu Feifei , Pan Ruolang , Liang Jinfeng , Zhang Lijiang TITLE=Repeat-dose toxicity of human umbilical cord mesenchymal stem cells via subcutaneous injection in NOG mice JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2025.1558310 DOI=10.3389/fcell.2025.1558310 ISSN=2296-634X