Russian bulletin of hygiene. 2021, 4
английский (eng)/2021, 4 .2021, 4.2021, 4.Б. м./, 2021 ( ). - 2021.2021, 4. Б. м., 2021 .Russian bulletin of hygiene : scientific medical journal : scientific journal of Eastern European medical cluster / Sci. a. educational Eastern Europ. med. cluster2021, 4