Kharkov, V. N.
Valikhova, L. V.
Yakovleva, E. L.
Serebrova, V. N.
Kolesnikov, N. A.
Petelina, T. I.
Khitrinskaya, I. Yu.
Stepanov, V. A.
Article History
Received: 20 May 2021
Revised: 17 June 2021
Accepted: 28 June 2021
First Online: 26 December 2021
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interest.</i> The authors declare that they have no conflict of interest.
: <i>Statement of compliance with standards of research involving humans as subjects.</i> All procedures performed in a study involving people comply with the ethical standards of the institutional and/or national committee for research ethics and the 1964 Helsinki Declaration and its subsequent changes or comparable ethical standards.
: Informed voluntary consent was obtained from each of the participants.