Stergiopoulos, Athanasios http://orcid.org/0000-0002-7908-0669
Politis, Panagiotis K. http://orcid.org/0000-0002-2556-2857
Article History
Received: 28 July 2015
Accepted: 14 June 2016
First Online: 22 July 2016
Change Date: 1 August 2016
Change Type: Update
Change Details: The Supplementary Information of this paper was updated shortly after publication following a technical error that resulted in a significant loss of image quality. This has now been corrected in the HTML; the PDF version of the paper was correct from the time of publication.
Competing interests
: The authors declare conflict of interests.