Article History
Received: 23 June 2018
Accepted: 17 August 2018
First Online: 22 August 2018
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.