For citations:
Polivanova T.V., Kasparov E.V., Vshivkov V.A. Indicators of quality of life in schoolchildren with abdominal pain. Experimental and Clinical Gastroenterology. 2023;1(1):158-164. (In Russ.) https://doi.org/10.31146/1682-8658-ecg-209-1-158-164. EDN: TLQTGP