Funding for this research was provided by:
Ministerstvo Školství, Mládeže a Tělovýchovy
Received: 2 July 2020
Accepted: 21 January 2021
First Online: 30 January 2021
Ethics approval and consent to participate
: The study was performed in accordance with the Declaration of Helsinki (2000) of the World Medical Association. This is the retrospective analysis of a previously published study that was approved by the institutional ethics committee (University Hospital Brno, reference number 20130410–03). Written informed consent was obtained from the subjects and/or their legally authorized representative.
: No person´s personal data are published.
: The authors declare that they have no competing interests.