AUTHOR=Peng Canjie , He Quanhao , Lv Fajin , Jiang Qing , Chen Yong , Wei Zongjie , Xv Yingjie , Liao Fangtong , Xiao Mingzhao TITLE=A stacking ensemble system for identifying the presence of histological variants in bladder carcinoma: a multicenter study JOURNAL=Frontiers in Oncology VOLUME=14 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1469427 DOI=10.3389/fonc.2024.1469427 ISSN=2234-943X