For citations:
Kharitonova L.A., Grigoriev K.I., Osmanov I.M., Borzakova S.N., Skorobogatova E.V., Shashel V.A., Matalaeva S.Yu., Shurygina D.A. Digestive comorbidity in pediatrics. Experimental and Clinical Gastroenterology. 2021;1(1):166-175. (In Russ.) https://doi.org/10.31146/1682-8658-ecg-185-1-166-175