Pankiv, V.I., T.Yu. Yuzvenko, S.M. Koval, K. Singh, I.V. Pankiv, Tarun Sehgal, and O.M. Lytvinova. 2020. “Correlation of Vitamin D Level With Thyroid Status and TSH Antibody Titers in Patients With Graves’ Disease”. INTERNATIONAL JOURNAL OF ENDOCRINOLOGY (Ukraine) 16 (4):305-9. https://doi.org/10.22141/2224-0721.16.4.2020.208482.