Slice-level vs. volumetric radiomics for molecular subtyping of breast cancer: impact of patient-level data partitioning on model performance - Laila El Jiani; Zouheir Banou; Fatima Zahra Alaoui; Hasnae Sakhi; El Habib Benlahmar; Sanaa El Filali (Frontiers in Radiology, 2026)