Lifshitz, F
Hecht, J P
Bermúdez, E F
Gamba, C A
Reinoso, J M
Casavalle, P L
Friedman, S M
Rodriguez, P N
Article History
Received: 9 June 2015
Revised: 3 February 2016
Accepted: 9 February 2016
First Online: 27 April 2016
Competing interests
: The authors declare no conflict of interest.