Text and Data Mining valid from 2019-05-06
Received: 11 December 2018
Accepted: 3 April 2019
First Online: 6 May 2019
Ethics approval and consent to participate
: This is an editorial that does not involve any data collection and as such would not require ethics approval.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.