Text and Data Mining valid from 2019-06-18
Received: 2 January 2019
Accepted: 12 June 2019
First Online: 18 June 2019
Ethics approval and consent to participate
: All procedures performed in the study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.The present study was approved by the ethics committee of the University of Cologne. Informed consent was obtained from all individual participants included in the study.This article does not contain any studies with animals performed by any of the authors.
: Not applicable.
: JA, MD and HG are authors of the evaluated questionnaire for which they receive royalties from Hogrefe. SKM and JP have no potential competing interests.