Stoieva, T. V., O. V. Dzhagiashvili, S. V. Prokhorova, V. A. Gudz, and O. Yu. Yemelyanova. 2018. “Collagen-Associated Syntropy in Children With Functional Disorders of the Digestive System”. Zaporozhye Medical Journal 20 (3). https://doi.org/10.14739/2310-1210.2018.3.130520.