Prapas, C.
Mavreas, V.
Article History
First Online: 10 August 2018
Compliance with Ethical Standards
:
: All authors declare that they have no conflict of interest.
: All procedures were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.