Steffen, Annika http://orcid.org/0000-0003-4072-9245
Holstiege, Jakob
Klimke, Kerstin
Akmatov, Manas K. http://orcid.org/0000-0003-2310-3179
Bätzing, Jörg
Article History
Received: 23 August 2018
Accepted: 24 September 2018
First Online: 10 October 2018
Compliance with ethical standards
:
: AS declares that she has no conflict of interest. JH declares that he has no conflict of interest. KK declares that she has no conflict of interest. MKA declares that he has no conflict of interest. JB declares that he has no conflict of interest.
: This article does not contain any studies with human participants performed by any of the authors. This study was exempted from institutional review board oversight and informed consent since only anonymized data were analysed in accordance with § 300 paragraph 2 Volume V of the Social Security Code (Sozialgesetzbuch (SGB) V).