Kreutziger, Janett
Schmid, Stefan
Umlauf, Nikolaus
Ulmer, Hanno
Nijsten, Maarten W.
Werner, Daniel
Schlechtriemen, Thomas
Lederer, Wolfgang
Article History
Received: 27 February 2018
Accepted: 11 June 2018
First Online: 13 July 2018
Ethics approval and consent to participate
: This retrospective study was approved by the Ethics Committee of the Medical Association of the Saarland (Ärztekammer des Saarlands, No. 69/14, 24/04/2014, Chairman Prof. Dr. med. Gerd Rettig-Stürmer) and by the Institutional Review Board.
: The manuscript does NOT contain any patient’s personal data. All data used in this analysis were anonymised and thus the Ethical Committee withdraw the requirement for patients or next of kin to consent to take part in the trial. Therefore, the authors state: “Not applicable in this section”.
: The authors declare that they have no competing interests.
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