Berger-Groch, Josephine
Lueers, Marie
Rueger, Johannes Maria
Lehmann, Wolfgang
Thiesen, Darius
Kolb, Jan Philipp
Hartel, Maximilian Johannes http://orcid.org/0000-0003-4978-2878
Grossterlinden, Lars Gerhard
Article History
Received: 4 April 2018
Accepted: 17 July 2018
First Online: 20 July 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures involving human participants were in accordance with the ethical standards of the institutional and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. As this study was retrospective, formal consent was not required.