Papafotiou, George
Paraskevopoulou, Varvara
Vasilaki, Eleni
Kanaki, Zoi
Paschalidis, Nikolaos
Klinakis, Apostolos
Article History
Received: 12 October 2015
Accepted: 10 May 2016
First Online: 20 June 2016
Competing interests
: The authors declare no competing financial interests.