Sivkov, Andrey
Chernus, Natalya
Gorenkov, Roman
Sivkov, Sergey
Sivkova, Svetlana
Savina, Tamara
Article History
Received: 30 August 2021
Accepted: 22 October 2021
First Online: 8 November 2021
Declarations
:
: The authors declare that the work is written with due consideration of ethical standards. The study was conducted in accordance with the ethical principles approved by the Human Experiments Ethics Committee of I.M. Sechenov First Moscow State Medical University (Sechenov University) (Protocol No 12 of 12.06.2020). All the participants have given their written informed consent to the participation in the research.
: All the participants have given their consent to the publication of the research results.
: The authors declare that they have no competing interests.