Khalife Soltani Z, Sadeghzadeh M, Toloie Eshlaghy A. VGG19 in MRI Brain Tumor Classification: A Systematic Review of Validation Rigor and Clinical Readiness. HN. Published online January 1, 2027:1-22. Accessed October 18, 2026. https://journals.kmanpub.com/index.php/Health-Nexus/article/view/6426