Text and Data Mining valid from 2018-10-15
First Online: 15 October 2018
Compliance with ethical guidelines
: E.S. Debus, F. Heidemann, W. Gross-Fengels, A. Mahlmann, E. Muhl, K. Pfister, S. Roth, C. Stroszczynski, A. Walther, N. Weiss, M. Wilhelmi and R.T. Grundmann declare that they have no competing interests.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: The supplement containing this article is not sponsored by industry.