Berticat, Claire
Thomas, Frédéric
Dauvilliers, Yves
Jaussent, Isabelle
Ritchie, Karen
Helmer, Catherine
Tzourio, Christophe
Raymond, Michel
Artero, Sylvaine
Article History
Received: 25 September 2015
Accepted: 25 February 2016
First Online: 21 March 2016
Competing interests
: The authors declare no competing financial interests.