Sokolnyk, S. V., Sorokman, T. V., Bodnar, G. B., Moldovan, P. M., Loziuk, I. Y., & Vaskul, N. Y. (2020). Marker profile of digestive system organs comorbid pathology in children. Journal of Education, Health and Sport, 10(10), 272–278. https://doi.org/10.12775/JEHS.2020.10.10.026