Text and Data Mining valid from 2019-03-16
Received: 7 March 2019
Accepted: 8 March 2019
First Online: 16 March 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: As Commentary this article does not contain any studies with human participants or animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.