For citations:
Kamenskaya O.V., Loginova I.Yu., Chernyavskiy A.M., Doronin D.V., Lomivorotov V.V. Carbon dioxide elimination pattern at cardiopulmonary exercise testing in patients with low ejection fraction value. PULMONOLOGIYA. 2019;29(6):647-653. (In Russ.) https://doi.org/10.18093/0869-0189-2019-29-6-647-653