Arı, Hatice Feray, et al. “Severe Myxedema Coma and Pericardial Effusion in a Child With Down Syndrome: The Importance of Adherence to Levothyroxine Therapy”. The Turkish Journal of Pediatrics, vol. 66, no. 3, July 2024, pp. 369-77, https://doi.org/10.24953/turkjpediatr.2024.4587.