For citations:

Novikova V.P., Khavkin A.I., Tsekh O.M. Features of asthenic syndrome in adolescents with Hp-associated chronic gastroduodenitis. Experimental and Clinical Gastroenterology. 2018;(12):87-90. (In Russ.) https://doi.org/10.31146/1682-8658-ecg-160-12-87-90