Rades, Dirk http://orcid.org/0000-0002-3221-7541
Hansen, Heinke C.
Schild, Steven E.
Janssen, Stefan
Article History
Received: 31 January 2019
Accepted: 25 March 2019
First Online: 29 March 2019
Compliance with Ethical Standards
:
: None.
: All procedures performed were in accordance with ethical standards and the Helsinki declaration from 1964 and its later amendments. The study was approved by the ethic committee of the University of Lübeck (reference number: 19-003A). Due to its retrospective design, informed consent specifically for this study was not required.