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Authors
Koppe, Uwe http://orcid.org/0000-0001-9718-5811
von Laer, Anja
Kroll, Lars E.
Noll, Ines
Feig, Marcel
Schneider, Marc
Claus, Hermann
Eckmanns, Tim
Abu Sin, Muna
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Article History
Received: 8 March 2018
Accepted: 22 May 2018
First Online: 5 June 2018
Ethics approval and consent to participate
: The study only includes anonymised routine surveillance data. Ethical approval for analysis of such surveillance data is not required according to the Medical Association’s professional code of conduct.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
