For citations:
Sakolchik M.A., Gorblyansky Yu.Yu., Podmogilnaya K.V., Fedyakina V.V. Epidemiological features of occupational chronic obstructive lung disease. Russian Journal of Occupational Health and Industrial Ecology. 2018;(7):51-55. (In Russ.) https://doi.org/10.31089/1026-9428-2018-7-51-55