Siegler, Lisa
Erber, Ramona
Burghaus, Stefanie
Brodkorb, Tobias
Wachter, David
Wilkinson, Nafisa
Bolton, James
Stringfellow, Helen
Haller, Florian
Beckmann, Matthias W.
Hartmann, Arndt
Agaimy, Abbas
Article History
Received: 6 November 2017
Revised: 17 December 2017
Accepted: 1 January 2018
First Online: 13 January 2018
Compliance with ethical standards
: The authors confirm that the study has been performed in accordance with accepted principles of ethical and professional conduct for biomedical scientific research. Approval of the local academic ethics committee of the Friedrich-Alexander University Erlangen-Nürnberg (FAU) was obtained (ref. number 129_16Bc).
: The authors declare that they have no conflict of interest.