Roller, F. C. http://orcid.org/0000-0002-6927-3248
Kriechbaum, S.
Breithecker, A.
Liebetrau, C.
Haas, M.
Schneider, C.
Rolf, A.
Guth, S.
Mayer, E.
Hamm, C.
Krombach, G. A.
Wiedenroth, C. B.
Article History
Received: 13 March 2018
Revised: 20 July 2018
Accepted: 31 July 2018
First Online: 29 August 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Prof. Dr. Gabriele A. Krombach.
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
: One of the authors has significant statistical expertise.
: Written informed consent was obtained from all subjects (patients) in this study.
: Institutional review board approval was obtained.
: • prospective• prognostic study/observational/experimental• performed at one institution