Picard, Frauke http://orcid.org/0000-0002-8456-9549
Panagiotidou, Petroula
Weinig, Laura
Steffen, Maximilian
Tammen, Anne-Beke
Klein, Rolf Michael
Article History
Received: 18 December 2019
Revised: 24 March 2020
Accepted: 25 March 2020
First Online: 15 April 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study protocol was approved by the ethics committee of the Medical Association of Witten/Herdecke (Germany). All procedures were performed in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendment.
: Written informed consent was obtained from each participant included in the study.