Sporns, Peter B. https://orcid.org/0000-0002-3028-0539
Niederstadt, Thomas
Heindel, Walter
Raschke, Michael J.
Hartensuer, René
Dittrich, Ralf
Hanning, Uta
Article History
Received: 23 August 2017
Accepted: 12 January 2018
First Online: 26 January 2018
Compliance with ethical guidelines
:
: P. Sporns, T. Niederstadt, W. Heindel, M. J. Raschke, R. Hartensuer, R. Dittrich, U. Hanning declare that they have no competing interests.
: This retrospective study was approved by the Ethics Committee of the University Münster and the Westfalian Chamber of Physicians, Münster, Germany. All study protocols and procedures were conducted in accordance with the Declaration of Helsinki.