© 2018 Tsoukalas, Psimadas, Kastis, Koutoulidis, Harris, Paravatou-Petsotas, Karageorgou, Furenlid, Moulopoulos, Stamopoulos and Bouziotis. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).
Except where otherwise noted, this item's license is described as © 2018 Tsoukalas, Psimadas, Kastis, Koutoulidis, Harris, Paravatou-Petsotas, Karageorgou, Furenlid, Moulopoulos, Stamopoulos and Bouziotis. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).