Bousquet, E
Calvayrac, O
Mazières, J
Lajoie-Mazenc, I
Boubekeur, N
Favre, G
Pradines, A
Article History
Received: 28 August 2014
Revised: 12 May 2015
Accepted: 22 May 2015
First Online: 6 July 2015
Competing interests
: The authors declare no conflict of interest.