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Authors
Haase, Matthias http://orcid.org/0000-0002-1538-2756
Thiel, Anne
Scholl, Ute I.
Ashmawy, Hany
Schott, Matthias
Ehlers, Margret
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Funding
Funding for this research was provided by:
Ministerium für Innovation, Wissenschaft und Forschung des Landes Nordrhein-Westfalen
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Article History
Received: 21 February 2020
Accepted: 25 May 2020
First Online: 10 June 2020
Ethics approval and consent to participate
: Informed consent was waived due to the retrospective design of this study. A significant number of the patients was not alive or was not contactable due to other reasons (loss of follow up). The study did not impose any risk to the patients. The study design excludes the possibility of identification of patients based on the anonymization of data. The study was approved by the local ethics committee of the Heinrich-Heine-University Duesseldorf (Study Number 4546).
: Not applicable.
: The authors declare that they have no competing interests.
