Brückner, C.
Straube, E.
Petersen, I.
Sachse, S.
Keller, P.
Layher, F.
Matziolis, G.
Spiegl, U.
Zajonz, D.
Edel, M.
Roth, A.
Article History
Received: 7 September 2018
Accepted: 11 December 2018
First Online: 10 January 2019
Ethics approval and consent to participate
: The ethics committee of the University Hospital Jena in Germany granted ethical approval (ref. no. 3409–03/12). The committee is listed in the Institutional Review Board (IRB) of the Office for Human Research Protections (OHRP) IORG0003487, IRB00004153.
: All authors declare no competing interests.
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