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Problemi Na Khigienata|January 1, 1976
[Lysosomal enzymatic activity in a hepatotoxic lesion in white rats]I ApostolovProblemi Na Khigienata|January 1, 1976
[Experimental substantiation of the maximum permissible concentration (MAC) of polyvinyl chloride resin]V Khristeva, M SpasovskiProblemi Na Khigienata|January 1, 1976
[Changes in enzymatic activity in rats with acute Unden poisoning]F Ribarova, L VasilevaProblemi Na Khigienata|January 1, 1976
[Analysis of a subjective assessment of work and morbidity in modern jobs]E Dincheva, N Tsaneva, G SimeonovProblemi Na Khigienata|January 1, 1976
[Skin mediator reactivity in workers in contact with lead]V Kirkov, K VantovaProblemi Na Khigienata|January 1, 1979
[Polarographic method of determining formaldehyde in air]E Koen, G IvanovProblemi Na Khigienata|January 1, 1983
[Stress reaction to work today]N Tsaneva, I Khadzhiolova, E Dincheva, et al.Problemi Na Khigienata|January 1, 1983
[Hygienic aspects of youth work brigades]P Kalaĭkova, P Pavlova, V Georgiev, et al.Problemi Na Khigienata|January 1, 1983
[Visual fatigue during work associated with increased visual loading]V Koĭcheva, V ZlatevaProblemi Na Khigienata|January 1, 1983
[Physical condition and work capacity of Vietnamese workers in the People's Republic of Bulgaria]N V Ch'ongPageof 49