Krappinger, Dietmar
Schwendinger, Peter
Lindtner, Richard A.
Funding for this research was provided by:
University of Innsbruck and Medical University of Innsbruck
Article History
Received: 28 February 2019
Revised: 27 June 2019
Accepted: 3 July 2019
First Online: 16 October 2019
Compliance with ethical guidelines
:
: D. Krappinger, P. Schwendinger and R.A. Lindtner declare that they have no competing interests.
: For this article no studies with human participants or animals were performed by any of the authors. All studies performed were in accordance with the ethical standards indicated in each case. This retrospective study was performed after consultation with the institutional ethics committee and in accordance with national legal requirements. The Ethics Committee of the Medical University of Innsbruck confirmed in a general statement that for retrospective observational studies no ethics committee approval is required by Austrian law.