For citations:
Valina S.L., Shtina I.E., Ustinova O.Yu., Eisfeld D.A. The study of the nutrition features in primary school students in the presence of alternative menu. Hygiene and Sanitation. 2019;98(11):1272-1278. (In Russ.) https://doi.org/10.47470/0016-9900-2019-98-11-1272-1278