The Radioiodine–Gut–Thyroxine Axis: Radiation-Induced Enteric Dysfunction as a Novel Mechanism of Reduced Levothyroxine Bioavailability After Iodine-131 Therapy. IJMPPH. Published online August 10, 2026:1-11. Accessed September 15, 2026. https://medical.thetapublishers.com/index.php/IJMPPH/article/view/282