Received: 1 November 2019
Accepted: 3 June 2020
First Online: 8 June 2020
Ethics approval and consent to participate
: The study was approved by the Cyprus National Bioethics Committee (ΕΕΒΚ/ΕP/2015/20) and conformed to the Code of Ethics of the World Medical Association (Declaration of Helsinki). Following explanation of the experimental procedures, the participants gave their written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.