Bloemeke, Janika
Silva, Neuza
Bullinger, Monika
Witt, Stefanie
Dörr, Helmuth-Günther
Quitmann, Julia
Article History
Received: 9 August 2018
Accepted: 7 March 2019
First Online: 18 March 2019
Ethics approval and consent to participate
: Ethics approval were obtained from the respective ethics committees of the centers, namely by the Hamburg Medical Chamber, the Saxon medical chamber, the Hessen medical chamber, the Nordrhein medical chamber and by the ethics committee of the Friedrich-Alexander University Erlangen – Nürnberg, of the University of cologne, of the University Hospital Magdeburg and of the Ludwig-Maximiliams-University Munich. A written informed consent was obtained from the study participants before the start of the study. Anonymized data was used for analysis and publication. Hence, the study has been performed in accordance with the ethical standard laid down in the 1964 Declaration of Helsinki and its later amendments.
: A written informed consent was obtained from the study participants before the start of the study. Anonymized data was used for analysis and publication.
: The authors declare that they have no competing interests.
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