[Concretization of certain hygienic requirements of working with mercury in schools].
D000397:Air Pollution; D004781:Environmental Exposure; D008628:Mercury; D008630:Mercury Poisoning / Q000517:prevention & control; D012572:School Health Services; D014586:USSR
D008628:Mercury
Konkretizatsiia nekotorykh gigienicheskikh trebovaniĭ k rabotam so rtut'iu v shkole.