Funding for this research was provided by:
Internal Grant Agency of Krajska zdravotni, a.s., Czech Republic (IGA-KZ-2016-2-10)
Text and Data Mining valid from 2019-10-29
Received: 7 July 2019
Accepted: 11 September 2019
First Online: 29 October 2019
Ethics approval and consent to participate
: The study was approved by the ethics committee (Ethics Committee, Masaryk Hospital Usti and Labem, Czech Republic, reference code 236/57). Since it was an observational clinical study without any impact on the management of the patients and all patients were unconsciousness because of cardiac arrest, informed consent was not required.
: Not applicable.
: The authors declare that they have no competing interests.