For citations:
Tatarsky A.R., Sukhanova E.V., Bobkov E.V., Kiryukhin A.B. Long-term combined inhaled therapy with ipratropium bromide and ambroxol of heavy smoking patients with chronic obstructive lung disease. PULMONOLOGIYA. 2005;(5):102-106. (In Russ.) https://doi.org/10.18093/0869-0189-2005-0-5-102-106