For citations:

Grigoriev K.I., Kharitonova L.A. COVID-19 and the digestive system lesions in children. Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics). 2022;67(5):6-17. (In Russ.) https://doi.org/10.21508/1027-4065-2022-67-5-6-17