Giannouli, Vaitsa
Article History
Received: 27 November 2016
Accepted: 6 February 2017
First Online: 16 February 2017
Compliance with ethical standards
:
: The authors declare that they have no competing interest.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the 1964 Helsinki declaration and its later amendments.
: Informed consent was obtained from all individual participants included in the study.