Schirren, Mirjam
Siebenbürger, Georg
Fleischhacker, Evi
Biermann, Niklas
Helfen, Tobias
Böcker, Wolfgang
Ockert, Ben http://orcid.org/0000-0003-2776-0133
Article History
Received: 31 October 2018
Accepted: 1 February 2019
First Online: 25 February 2019
Compliance with ethical guidelines
:
: M. Schirren, G. Siebenbürger, E. Fleischhacker, N. Biermann, T. Helfen, W. Böcker, and B. Ockert declare that they have no competing interests.
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975 (in its most recently amended version). The ethics committee of the Ludwig Maximilian University of Munich approved the study (Nr. 156-12). Informed consent was obtained from all patients included in the study.