Text and Data Mining valid from 2019-01-10
First Online: 10 January 2019
Change Date: 21 February 2019
Change Type: Correction
Change Details: The original version of the article contained an error in the values of Table 1.
Compliance with Ethical Standards
: All authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors. Therefore, an informed consent was not necessary.