Pasecnaja, Elina http://orcid.org/0000-0001-8439-9773
Perkons, Ingus
Bartkevics, Vadims
Zacs, Dzintars
Article History
Received: 10 September 2020
Accepted: 4 January 2021
First Online: 18 January 2021
Compliance with ethical standards
:
: This is an observational study, no ethical approval is required.
: The authors declare that they have no competing interests.
: Not applicable.