Article History
Received: 8 October 2019
Accepted: 3 November 2019
First Online: 26 November 2019
Compliance with ethical standards
:
: No conflict of interest to be declared by the authors.
: This article did not require ethical approval of any kind.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: This article does not include patients, and therefore informed consent was not applicable.