For citations:
Dianova D.G., Dolgikh O.V. The duration of labor activity of workers in the production of phthalic anhydride and the imbalance of cellular immunity indicators. Russian Journal of Occupational Health and Industrial Ecology. 2021;61(2):97-102. (In Russ.) https://doi.org/10.31089/1026-9428-2021-61-2-97-102