Aydin, Malik
Franke, Ingo
Kurylowicz, Lisa
Ganschow, Rainer
Lentze, Michael
Born, Mark
Hagemann, Rebekka
Article History
Received: 10 August 2018
Accepted: 14 January 2019
First Online: 5 February 2019
Compliance with ethical standards
:
: The authors have declared that they have no competing interests. This work has not been published before and it is not under consideration for publication anywhere else. Its publication has been approved by all co-authors.
: All retrospectively and prospectively analyzed data involving human participants were in accordance with the ethical standards and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Ethical approval was obtained by the Ethics Committee of the Faculty of Medicine, Rheinische Friedrich-Wilhelms-University, Bonn, Germany, and the study was assigned the human study registration number 081/05. The data extraction and analyses were performed pseudonymously; an additional participant informed consent was obtained from all individual participants included in the study. This article does not contain any studies with animals performed by any of the authors.