Pandrc, M. S., A. Ristić, V. Kostovski, J. Milin-Lazović, N. Milić, and J. Ćirić. “The Role of Echocardiography in Monitoring the Therapeutic Effect of Levothyroxine Replacement Therapy in Subclinical Hypothyroidism”. Archives of Biological Sciences, vol. 72, no. 1, Mar. 2020, pp. 137-46, https://serbiosoc.org.rs/arch/index.php/abs/article/view/4752.