Bialka, Szymon
Copik, Maja
Rybczyk, Katarzyna
Owczarek, Aleksander
Jedrusik, Ewa
Czyzewski, Damian
Filipowski, Marek
Rivas, Eva
Ruetzler, Kurt
Szarpak, Lukasz http://orcid.org/0000-0002-0973-5455
Misiolek, Hanna
Article History
Received: 5 April 2018
Accepted: 27 June 2018
First Online: 31 July 2018
Ethics approval and consent to participate
: The study protocol has been approved by the Institutional Review Boards of the Medical University of Silesia, Katowice, Poland (identifier: KNW/0022/KB1/42/16), and written informed consent was obtained from the patients before their enrollment in the study.
: All included patients or their family members signed the informed consent form to report individual patient data. All authors have confirmed the manuscript and approved the publication of the manuscript.
: Kurt Ruetzler, MD serves as an associate editor of BMC Anesthesiology, but was not involved in handling this manuscript in any manner. The authors declare that they have no competing interest.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.