Sebio, A
Salazar, J
Páez, D
Berenguer-Llergo, A
del Río, E
Tobeña, M
Martín-Richard, M
Sullivan, I
Targarona, E
Balart, J
Baiget, M
Barnadas, A
Article History
Received: 3 January 2014
Revised: 31 March 2014
Accepted: 22 May 2014
First Online: 15 July 2014
Competing interests
: The authors declare no conflict of interest.