Original ResearchPublished 8 October 2026Differential sparse attention framework for accurate ovarian cancer subtype classification using DenseNet121Muhammad Shoaib Saleem · Javed Rashid · Turke Althobaiti · Faiza Jameel · Khiati Zakaria · Hari Mohan Rai · Anwar GhaniFrontiers in Digital Healthdoi 10.3389/fdgth.2026.1875306