Received: 16 May 2021
Accepted: 9 June 2021
First Online: 26 June 2021
: This research was approved by the Committee on Bioethics, under the Global Research Institute in the Kyrgyz Republic (Ref. 011082020–1). All informants provided written informed consent. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors have no conflicting or competing interests to declare.