Funding for this research was provided by:
Ministry of Health of the Russian Federation (01201257849)
Received: 11 March 2020
Accepted: 16 August 2020
First Online: 10 September 2020
Ethics approval and consent to participate
: The study protocol was approved by the Local Ethic Committee of the National Medical Research Center of Cardiology of the Ministry of Health of the Russian Federation (protocol №180 from 26.11.2012). A written consent was obtained from all participants in the study.
: Not applicable.
: The authors declare that they have no competing interests.