Ancora, Daniele http://orcid.org/0000-0002-1232-4112
Di Battista, Diego
Giasafaki, Georgia
Psycharakis, Stylianos E.
Liapis, Evangelos
Ripoll, Jorge http://orcid.org/0000-0001-8856-7738
Zacharakis, Giannis
Article History
Received: 4 April 2017
Accepted: 6 September 2017
First Online: 19 September 2017
Competing Interests
: The authors declare that they have no competing interests.