scientific article published on 19 February 2014
author: Poul Jørgen Jennum, Marcus Michael Unger, Michele Terzaghi, Karel Šonka, Isabelle Arnulf, Birgit Högl, Luigi Ferini Strambi, Birgit Frauscher, Wolfgang H. Oertel, Yves Dauvilliers, Ronald B Postuma, Jacques Montplaisir, Monica Puligheddu, Smeranda Leu-Semenescu, Masayuki Miyamoto, Valérie Cochen De Cock, Joan Santamaria, Marco Zucconi, Raffaele Manni
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