Grabmüller, Melanie
Schyma, Christian
Madea, Burkhard
Eichhorst, Tim
Courts, Cornelius
Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (CO992/4-1)
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Article History
Accepted: 6 March 2017
First Online: 25 April 2017
Compliance with ethical standards
: The study protocol was reviewed and approved by the ethics committee of the Hospital of the University of Bonn.
: All authors declare they have no conflict of interest.