Giannakopoulos, Aris
Katelaris, Anni
Noni, Maria
Karakonstantakis, Theodore
Kanaka-Gantenbein, Christina
Doudounakis, Stavros
Article History
Received: 22 October 2017
Revised: 6 February 2018
Accepted: 14 February 2018
First Online: 27 February 2018
Compliance with ethical standards
: Informed written consent was obtained from the parents of the participating individuals and the study wasapproved from the local Ethical Committee.
: The authors declare that they have no conflict of interest.