[1] CHU Vaudois, CIRS, CH-1011 Lausanne, Switzerland
[2] Univ Lausanne, CIG, CH-1015 Lausanne, Switzerland
[3] CHU Lapeyronie, Serv Biochim, Montpellier, France
[4] INSERM, U888, F-75654 Paris, France
[5] CHU Gui de Chauliac, Serv Neurol, Ctr Reference Natl Narcolepsie Hypersomnie Idiopa, Montpellier, France