Schaefer, Michael
Reinhardt, Anne
Garbow, Eileen
Dressler, Deborah
Article History
Received: 10 September 2019
Accepted: 10 February 2020
First Online: 27 April 2020
Compliance with ethical standards
:
: Authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee (DGPs) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.