Benhidjeb, T.
Witzel, K.
Stark, M.
Schulte am Esch, J.
Article History
Received: 21 July 2019
Accepted: 13 August 2019
First Online: 26 August 2019
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: 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.