Heitmann, M. http://orcid.org/0000-0001-8729-634X
Akoto, R.
Krause, M.
Hepp, P.
Schöpp, C.
Gensior, T. J.
Bartl, C.
Lill, H.
Frosch, Karl-Heinz
Article History
Received: 17 January 2018
Accepted: 4 December 2018
First Online: 11 January 2019
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: Ethical approval was given by the ethics committee of the Medical Chamber of Hamburg, Germany (ID PV4458).