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Problemi Na Khigienata|January 1, 1987
[In vitro research on the interaction of natural zeolites with diploid cells from the human embryonic lung]S Nikolova, M Vinarova, G Kirov, et al.Problemi Na Khigienata|January 1, 1992
[The effect of elevated amounts of ascorbic acid on the status of the vitamin and lung disorders in guinea pigs inhaling styrene]S Petrova, A Mikhaĭlova, N DonchevProblemi Na Khigienata|January 1, 1992
[The incidence of paraprofessional diseases in employees of the Research Institute of Ferrous Metallurgy in Kremikovtsi]T KunevaProblemi Na Khigienata|January 1, 1992
[An automated system for the collective protection from harmful exposure to the Veneta superhigh-frequency electromagnetic field of military units and the civilian population]P Chobanov, V Staevska, M Izrael, et al.Problemi Na Khigienata|January 1, 1993
[The inhalational toxicity of the antibiotic preparation Bactericin for plant protection]Zh Khalkova, Kh ZaĭtsovProblemi Na Khigienata|January 1, 1993
[An infrared spectrophotometric method for determining nitrous oxide and halothane in the air of operating rooms]T PanevProblemi Na Khigienata|January 1, 1993
[Changes in electrolyte excretion in the saliva of 8th-grade students of a music school in Sofia]G Todorov, V NedevaProblemi Na Khigienata|January 1, 1993
[The discomfort threshold studied in operators at the control consoles in automated production with a view to its use in job selection]L TsanevaProblemi Na Khigienata|January 1, 1993
[Changes in the blood system under chronic toxic exposure]V Khristeva, N MirchevPageof 49