Harter, T. http://orcid.org/0000-0003-0344-7521
Muehlbrandt, S.
Ummethala, S.
Schmid, A.
Nellen, S.
Hahn, L. http://orcid.org/0000-0002-2380-4963
Freude, W. http://orcid.org/0000-0002-8797-7687
Koos, C. http://orcid.org/0000-0003-2690-0691
Article History
Received: 23 December 2017
Accepted: 20 July 2018
First Online: 24 September 2018
Change Date: 11 June 2019
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Competing interests
: The authors declare no competing interests.