1. From the Sleep Clinic (L.R., R.V., I.A., A.Z.G.), Pitié-Salpêtrière Hospital, APHP-Sorbonne University, Paris, France; Neurology Department (L.R.), Unidade Local de Saude, Matosinhos, Portugual; Department of Neurology 2 (D.P.), Neuro-oncology Department, Pitié-Salpêtrière Hospital, APHP-Sorbonne University, Paris; National Reference Centre on Paraneoplastic Neurological Syndromes (J.H.), Hospices Civils de Lyon, MeLiS - UCBL-CNRS UMR 5284 - INSERM U1314, Université Claude Bernard Lyon 1; and...