For citations:
Spiridonov V.L., Roslaya N.A., Akopyan K.A., Bushueva T.V. Efficacy of immunization against pneumococcal infection in aluminum industry workers. PULMONOLOGIYA. 2014;(6):56-59. (In Russ.) https://doi.org/10.18093/0869-0189-2014-0-6-56-59