Anfinogenova , O. B., & Shebalina, A. O. (2026). COMORBIDITY IN CHRONIC GASTRODUODENITIS IN CHILDREN AND ASSESSMENT OF THE INFLUENCE OF INDIVIDUAL FACTORS ON ITS SEVERITY. Mother and Baby in Kuzbass, 2, 56-62. https://doi.org/10.24412/2686-7338-2026-2-56-62