Pellas, Nikolaos https://orcid.org/0000-0002-3071-6275
Vosinakis, Spyridon https://orcid.org/0000-0003-1735-4297
Article History
Received: 27 December 2017
Accepted: 19 April 2018
First Online: 24 April 2018
Compliance with ethical standards
:
: All authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.