Svandova, E
Lesot, H
Vanden Berghe, T
Tucker, A S
Sharpe, P T
Vandenabeele, P
Matalova, E
Article History
Received: 6 March 2014
Revised: 12 June 2014
Accepted: 19 June 2014
First Online: 14 August 2014
Competing interests
: The authors declare no conflict of interest.