Text and Data Mining valid from 2019-01-31
Received: 13 July 2018
Accepted: 15 January 2019
First Online: 31 January 2019
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (national and institutional). Informed consent was obtained from all individual subjects participating in the study. This study was IRB approved.
: Informed written consent was obtained from all participants before being included in the study.