Winkler, Martin Sebastian
Nierhaus, Axel
Rösler, Gilbert
Lezius, Susanne
Harlandt, Olaf
Schwedhelm, Edzard
Böger, Rainer H.
Kluge, Stefan
Article History
Received: 3 December 2017
Accepted: 7 June 2018
First Online: 19 September 2018
Ethics approval and consent to participate
: The local ethics committee, Hamburg Chamber of Physicians, has approved our study protocol (reference number PV3927). All study participants or their legal representatives gave their informed consent.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.