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Problemi Na Khigienata|January 1, 1995
[The assessment of arsenic exposure in copper smelting]S Tsolova, Z Zaprianov, Ts Dimitrov, et al.Problemi Na Khigienata|January 1, 1995
[The toxic hygiene problems of workers in the Dinamik automobile tire plant in Sofia]L Ivanova-Chemishanska, L Khinkova, A Mikhaĭlova, et al.Problemi Na Khigienata|January 1, 1995
[The cytogenetic effects (the frequency of micronuclei) in lymphocyte cultures from the peripheral blood of workers in automobile tire manufacture]E Mirkova, L Ivanova-Chemishanska, L Khinkova, et al.Problemi Na Khigienata|January 1, 1995
[The basic parameters affecting the taking of air samples by concentration methods--the absorption method]M MukhtarovaProblemi Na Khigienata|January 1, 1995
[An experimental study of the effect of vanadium on enzyme indices in chronic oral exposure]Ts Vodichenska, V BŭdevaProblemi Na Khigienata|January 1, 1995
[The joint activities of the National Center for Hygiene, Medical Ecology and Nutrition and the epidemiological hygiene inspectorates in 1993 and 1994]E IvanovichProblemi Na Khigienata|January 1, 1995
[Chronic occupational stress and the cardiovascular risk in teachers]Kh Deianov, I Khadzhiolova, L MinchevaProblemi Na Khigienata|January 1, 1977
[Methods of taking alcohol samples on solid adsorbents]N BonevProblemi Na Khigienata|January 1, 1990
[Dust levels and dust-induced diseases in the main dust-producing industries]M Dobreva, T Burilkov, S Ivanova, et al.Problemi Na Khigienata|January 1, 1990
[A fluorescent method for the quantitative determination of germanium in the air of a work environment]V GŭlŭbovaPageof 49