Hellak, Andreas http://orcid.org/0000-0002-5824-6957
Schmidt, Nicola
Schauseil, Michael
Stein, Steffen
Drechsler, Thomas
Korbmacher-Steiner, Heike Maria
Article History
Received: 8 December 2017
Accepted: 31 May 2018
First Online: 8 June 2018
Ethics approval and consent to participate
: All research activities relevant to the present study were performed in accordance with the Declaration of Helsinki. This study involves human data, and the use of the data was approved by the ethics committee of Marburg University Hospital (ref. no. 34/15). All of the patients had provided written consent to the use of their data in the study.
: The authors declare that they have no competing interests.
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