Text and Data Mining valid from 2019-03-01
First Online: 7 March 2019
Compliance with ethical guidelines
: R.F.F. Cima, B. Mazurek, H. Haider, D. Kikidis, A. Lapira, A. Noreña, and D.J. Hoare 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.