Funding for this research was provided by:
Narodowe Centrum Nauki (2017/25/B/NZ3/00122)
Ministry of Education and Science of the Republic of Kazakhstan (SHIP-2.3/CS-02)
Received: 6 June 2021
Accepted: 12 October 2021
First Online: 21 October 2021
: The study was conducted according to the guidelines of the Declaration of Helsinki, and approved by the Bioethics Committee at the Poznan University of Medical Sciences (consent number 578/18, May 16, 2018). Written informed consent was received from all subjects involved in the study.
: Not applicable.
: The authors declare that they have no competing interests.