Multi-Disease Diagnostic Framework Using VGG19-Based Deep Visual Feature Extraction from Medical ImagesManojkumar G, David Neels Ponkumar D, Nithya S, Selvakani R, Vidhyapathy M and Balakrishnan NITM Web Conf., 82 (2026) 03009DOI: https://doi.org/10.1051/itmconf/20268203009