Krupar, Rosemarie
Watermann, Christian
Idel, Christian
Ribbat-Idel, Julika
Offermann, Anne
Pasternack, Helen
Kirfel, Jutta
Sikora, Andrew G.
Perner, Sven
Article History
Received: 17 December 2019
Accepted: 18 May 2020
First Online: 10 June 2020
Competing interests
: The authors declare no competing interests.