Philippe, M
Goutelle, S
Guitton, J
Fonrose, X
Bergeron, C
Girard, P
Bertrand, Y
Bleyzac, N
Article History
Received: 23 March 2015
Revised: 4 August 2015
Accepted: 7 August 2015
First Online: 21 September 2015
Competing interests
: The authors declare no conflict of interest.