Kadushkin, A. G.
Tahanovich, A. D.
Movchan, L. V.
Zafranskaya, M. M.
Dziadzichkina, V. V.
Shman, T. V.
Article History
Received: 20 January 2022
Revised: 6 March 2022
Accepted: 9 March 2022
First Online: 15 August 2022
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interest. Patients with COPD and healthy subjects were informed in detail about the aim and objectives of the study. Thorough answers were given to the questions of study participants. All subjects signed informed consent forms. The study was approved by the decision of the Biomedical Ethics Committee of Belarusian State Medical University (protocol no. 15, October 22, 2014).