Sokolnyk, Snizhana Vasylivna, Tamila Vasylivna Sorokman, Ganna Borysivna Bodnar, Pavlo Mykhailovych Moldovan, Iryna Yaroslavivna Loziuk, and Nadiia Yaroslavivna Vaskul. “Marker Profile of Digestive System Organs Comorbid Pathology in Children”. Journal of Education, Health and Sport 10, no. 10 (October 30, 2020): 272–278. Accessed March 29, 2024. https://apcz.umk.pl/JEHS/article/view/JEHS.2020.10.10.026.