Kreye, Gudrun
Masel, Eva-Katharina
Hackner, Klaus
Stich, Beate
Nauck, Friedemann
Article History
Received: 1 November 2017
Accepted: 25 January 2018
First Online: 19 February 2018
Conflict of interest
: G. Kreye, E.-K. Masel, K. Hackner, B. Stich, and F. Nauck declare that they have no competing interests.
: This article does not contain any studies with human participants or animals performed by any of the authors. Additional informed consent was obtained from all individual participants for whom identifying information is included in this article.