Lupu-Plesu, M
Claren, A
Martial, S
N'Diaye, P-D
Lebrigand, K
Pons, N
Ambrosetti, D
Peyrottes, I
Feuillade, J
Hérault, J
Dufies, M
Doyen, J
Pagès, G
Article History
Received: 27 February 2017
Revised: 7 May 2017
Accepted: 10 May 2017
First Online: 3 July 2017
Competing interests
: The authors declare no conflict of interest. The views expressed are purely those of the authors and may not in any circumstances be regarded as stating an official position of the European Commission.