For citations:
Kuchma V.R., Polenova M.A., Sedova A.S., Virabova A.R. Hygienic assessment of the intensity of educational activities of students in the lesson. Hygiene and Sanitation. 2026;105(9):1020-1026. (In Russ.) https://doi.org/10.47470/0016-9900-2026-105-9-1020-1026. EDN: jyiybj
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