Text and Data Mining valid from 2019-06-27
Received: 11 February 2019
Accepted: 18 June 2019
First Online: 27 June 2019
Compliance with ethical standards
: There is no conflict of interest.
: Ethical approval for human and animal rights (with IRB Approval number: 2009-11/77) was obtained.
: Informed consent was obtained from all individual participants included in the study.