Zaichick, Vladimir. “Comparison of Nineteen Chemical Element Contents in Normal Thyroid and Thyroid With Riedel’s Struma”. Jour Med Resh and Health Sci 4, no. 11 (November 10, 2021): 1529–1538. Accessed April 26, 2024. https://jmrhs.info/index.php/jmrhs/article/view/451.