Boutzios, Georgios
Moutsopoulos, Haralampos M.
Article History
Received: 9 December 2019
Accepted: 29 January 2020
First Online: 10 February 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from the individual participant included in the study.