Szwajkosz, K., A. Wawryniuk, K. Sawicka, R. Łuczyk, and A. Tomaszewski. “Hypothyroidism Being Caused by Chronic Autoimmune Inflammation of the Thyroid Gland”. Journal of Education, Health and Sport, vol. 7, no. 5, Apr. 2017, pp. 41-54, https://apcz.umk.pl/JEHS/article/view/4431.