Sümbül, Hilmi Erdem, and Fettah Acıbucu. “Graves’ Disease and Thyroiditis Can Be Differentiated Using Only Free Thyroid Hormone Levels”. The European Research Journal 6, no. 4 (July 3, 2020): 314–318. Accessed April 5, 2026. https://eurj.org.tr/article/view/421.