For citations:
Chubarova S.V., Sobko E.A., Demko I.V., Ishchenko O.P., Kraposhina A.Yu., Solov'eva I.A., Gordeeva N.V., Salmina A.B. Clinical, functional and laboratory features of asthma–COPD overlap syndrome. PULMONOLOGIYA. 2016;26(6):649-656. (In Russ.) https://doi.org/10.18093/0869-0189-2016-26-6-649-656