For citations:
Stepanishcheva L.A., Ignatova G.L. Analysis of factors influencing on occurrence and course of chronic obstructive pulmonary disease in engineering workers. PULMONOLOGIYA. 2004;(5):32-35. (In Russ.)
Stepanishcheva L.A., Ignatova G.L. Analysis of factors influencing on occurrence and course of chronic obstructive pulmonary disease in engineering workers. PULMONOLOGIYA. 2004;(5):32-35. (In Russ.)