Valignat, Marie-Pierre
Nègre, Paulin
Cadra, Sophie
Lellouch, Annemarie C
Gallet, François
Hénon, Sylvie
Theodoly, Olivier
Article History
Received: 30 June 2014
Accepted: 9 September 2014
First Online: 17 October 2014
Competing interests
: The authors declare no competing financial interests.