Baldo, Laura
Pretus, Joan Lluís
Riera, Joan Lluís
Musilova, Zuzana
Bitja Nyom, Arnold Roger
Salzburger, Walter
Article History
Received: 16 September 2016
Revised: 9 February 2017
Accepted: 14 March 2017
First Online: 16 May 2017
Competing interests
: The authors declare no conflict of interest.