zu Hoerste, Melissa Meyer
Walscheid, Karoline http://orcid.org/0000-0002-9323-6711
Tappeiner, Christoph
Zurek-Imhoff, Beatrix
Heinz, Carsten
Heiligenhaus, Arnd
Article History
Received: 16 January 2018
Revised: 5 June 2018
Accepted: 26 July 2018
First Online: 1 August 2018
Compliance with ethical standards
: The study design conforms to the standards currently applied in Germany. No institutional review board approval or informed consent is required for chart review studies based on fully anonymized data as provided to the study directly by the treating physician.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.
: The authors declare that they have no conflict of interest.