For citations:

Shogenova L.V. Efficacy and safety of inhalation therapy with thermal heliumoxygen mixture in patients with exacerbation of chronic obstructive pulmonary disease complicated by hypoxemic and hypercapnic respiratory failure and secondary pulmonary arterial hypertension. PULMONOLOGIYA. 2025;35(4):511-521. (In Russ.) https://doi.org/10.18093/0869-0189-2025-35-4-511-521