Fröhlich, Matthias http://orcid.org/0000-0002-8444-632X
,
Mutschler, Manuel
Caspers, Michael
Nienaber, Ulrike
Jäcker, Vera
Driessen, Arne
Bouillon, Bertil
Maegele, Marc
Article History
Received: 3 August 2017
Accepted: 20 November 2017
First Online: 23 November 2017
Compliance with ethical standards
:
: The authors report no conflict of interest. This is an unfunded study.
: As this is a retrospective register study, individual formal consent is not required.
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