[1] Sleep Res Inst, Paseo Habana 151, Madrid 28036, Spain
[2] Mayo Clin, Coll Med, Ctr Sleep Med, Rochester, MN USA
[3] Mayo Clin, Coll Med, Dept Neurol, Rochester, MN USA
[4] Harvard Med Sch, Boston, MA USA
[5] Massachusetts Gen Hosp, Dept Psychiat, Boston, MA 02114 USA
[6] Massachusetts Gen Hosp, Dept Neurol, Boston, MA 02114 USA
[7] Med Univ Innsbruck, Dept Neurol, Innsbruck, Austria
[8] Univ Colorado, Skaggs Sch Pharm & Pharmaceut Sci, Dept Clin Pharm, Aurora, CO USA
[9] Univ Colorado, Skaggs Sch Pharm & Pharmaceut Sci, Dept Neurol, Aurora, CO USA
[10] Univ Colorado, Sch Med, Dept Clin Pharm, Aurora, CO USA
[11] Univ Colorado, Sch Med, Dept Neurol, Aurora, CO USA
[12] Stanford Univ, Sch Med, Stanford, CA 94305 USA
[13] Univ Thessaly, Sch Hlth Sci, Fac Med, Univ Hosp Larissa,Dept Neurol, Larisa, Greece
[14] Japan Somnol Ctr, Neuropsychiat Res Inst, Tokyo, Japan
[15] Tokyo Med Univ, Dept Somnol, Tokyo, Japan
[16] Civ Hosp, Neuroctr Southern Switzerland, Sleep & Epilepsy Ctr, Lugano, Switzerland
[17] Univ Marburg, Dept Neurol, Marburg, Germany
[18] Methodist Neurosci Inst, Dept Neurol, Houston, TX USA
[19] Helmholtz Zentrum Munchen, Inst Neurogen, Munich, Germany
[20] Tech Univ Munich, Klinikum Rechts Isar, Dept Neurol, Munich, Germany
[21] Munich Cluster Syst Neurol SyNergy, Munich, Germany
[22] Johns Hopkins Bayview Med Ctr, Sleep Disorders Ctr, Baltimore, MD USA
[23] Johns Hopkins Univ, Dept Neurol, Baltimore, MD 21218 USA