Text and Data Mining valid from 2020-01-13
Received: 20 September 2019
Accepted: 6 January 2020
First Online: 13 January 2020
Compliance with Ethical Standards
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the Institutional Review Board (Protocol # 18–413) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.