Gkotzamanidou, M
Sfikakis, P P
Kyrtopoulos, S A
Bamia, C
Dimopoulos, M A
Souliotis, V L
Article History
Received: 31 March 2014
Revised: 15 May 2014
Accepted: 30 June 2014
First Online: 22 July 2014
Change Date: 23 September 2014
Change Type: Update
Change Details: This paper was modified 12 months after initial publication to switch to Creative Commons licence terms, as noted at publication
Competing interests
: The authors declare no conflict of interest.