Received: 28 January 2021
Accepted: 29 March 2021
First Online: 7 April 2021
: The study was approved by the Kaunas Regional Biomedical Research Ethics Committee (Ethics approval number No. BE-2-78) and was performed in compliance with the Helsinki Declaration. Written informed consent was obtained from the patients or next of kin, consistent with the applicable laws.
: Not applicable.
: The authors declare that they have no competing interests.