Kremers, Inge
Hohberger, Bettina
Bergua, Antonio
Article History
Received: 5 February 2020
Revised: 26 March 2020
Accepted: 30 March 2020
First Online: 11 April 2020
Compliance with ethical standards
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the local ethics committee of the Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in this research. This article does not contain any studies with animals performed by any of the authors.