Funding for this research was provided by:
Ministerstvo Zdravotnictví Ceské Republiky (AZV MZ ČR no. 17-29447A)
Text and Data Mining valid from 2020-04-15
Received: 3 April 2019
Accepted: 7 April 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: The study conformed to the provisions of the Declaration of Helsinki, and was approved by the ethics committees of University Hospital Ostrava (no. 486/2016). All subjects gave their written informed consent to inclusion before they participated in the study.
: Not applicable.
: The authors declare no financial or other conflict of interest.