Buldyhina, Y., G. Terekhova, L. Strafun, S. Shlyakhtych, and O. Rakov. “White Spots in the Questions Related to Selenium Deficiency: About the Place of Selenium-Containing Drugs in the Treatment of Thyroid Pathology”. INTERNATIONAL JOURNAL OF ENDOCRINOLOGY (Ukraine), vol. 16, no. 2, Sept. 2021, pp. 117-23, doi:10.22141/2224-0721.16.2.2020.201296.