Article History
Received: 4 March 2019
Accepted: 15 October 2019
First Online: 19 December 2019
Compliance with Ethical Standards
:
: The authors declare no conflict of interest.
: The Psychotherapeutenkammer Hamburg committee has no ethical objections to the research project. All procedures performed in this study involving human participants were conformed with the ethical standards of the institutional and national research committee 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.