Text and Data Mining valid from 2019-09-13
First Online: 13 September 2019
Compliance with Ethical Standards
: There are no conflicts of interest to report for this submission.
: The study conforms to the norms prescribed by the Declaration of Helsinki, 1975 as amended in 2000, and comparable ethical standards.
: Informed written consent was obtained from all the study participants. No risks resulting from taking part in the study, were identified. There is no registered funder to report for this submission.