Makhov, A.S., and Ilya Nikolayevich Medvedev. “Physiological and Morphological Peculiarities of Children With Down’s Syndrome: A Brief Review”. Bali Medical Journal 9, no. 1 (April 1, 2020): 51–54. Accessed March 26, 2023. https://balimedicaljournal.org/index.php/bmj/article/view/1099.