Text and Data Mining valid from 2019-11-30
Received: 18 August 2019
Accepted: 22 November 2019
First Online: 30 November 2019
Compliance with ethical standards
: We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, and there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled.