AUTHOR=Peng Rende , Zhang Yaoyu , Jia Mingzhu , Yi Xinping , Yi Xiaoyao , Li Shadan , Pi Jiangchuan , Meng Wenjun TITLE=Predicting recurrence of non-muscle invasive bladder urothelial carcinoma: predictive value of the optimal cut-off value of Ki67 JOURNAL=Frontiers in Oncology VOLUME=14 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1522009 DOI=10.3389/fonc.2024.1522009 ISSN=2234-943X