Kunath, F.
Goebell, P. J.
Wullich, B.
Sikic, D.
Kahlmeyer, A.
Article History
Received: 21 October 2018
Accepted: 25 February 2019
First Online: 4 March 2019
Compliance with ethical standards
:
: All the authors declare that they have no conflict of interest concerning the topic of this publication. The authors confirm that the project development and writing of manuscript was not funded.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study, formal consent is not required. All the authors have read and approved the manuscript, and it has not been submitted elsewhere. All the authors had full access to all study data and take full responsibility for the integrity of the data and the accuracy of the data analysis.