Ruf, Katharina
Demerath, Antonia
Hebestreit, Helge
Kunzmann, Steffen
Article History
Received: 5 June 2017
Accepted: 9 January 2018
First Online: 16 January 2018
Ethics approval and consent to participate
: The study was approved by the ethics committee of the Medical School of the University of Wuerzburg (votum number 17/10; 03.03.2010). Written informed consent was obtained from the patients and their legal guardians, if appropriate.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.