For citations:

Ikhsanov S.D., Sergienko D.F., Detochkin A.N. CLINICAL FEATURES OF DUODENAL ULCER DISEASE AND EROSIVE GASTRODUODENITIS IN CHILDREN. Astrakhan medical journal. 2019;14(2):75-81. (In Russ.) https://doi.org/10.17021/2019.14.2.75.81