Lucena, C M
Rovira, M
Gabarrús, A
Filella, X
Martínez, C
Domingo, R
Torres, A
Agustí, C
Article History
Received: 18 November 2015
Revised: 20 June 2016
Accepted: 24 June 2016
First Online: 31 October 2016
Competing interests
: The authors declare no conflict of interest.