AUTHOR=Sun Lei , Zhang Yue , Zuo Xinliang , Liu Yongmei TITLE=A novel nomogram for predicting mortality risk in young and middle-aged patients undergoing maintenance hemodialysis: a retrospective study JOURNAL=Frontiers in Medicine VOLUME=11 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2024.1508485 DOI=10.3389/fmed.2024.1508485 ISSN=2296-858X