Paraneoplastic Endocrine SyndromesParaneoplastic Syndromes, Nervous SystemParaneoplastic SyndromesParaneoplastic PolyneuropathyParaneoplastic Cerebellar DegenerationLimbic EncephalitisParaneoplastic Syndromes, OcularLambert-Eaton Myasthenic SyndromeSyndromeNervous System DiseasesHu Paraneoplastic Encephalomyelitis AntigensStiff-Person SyndromeOpsoclonus-Myoclonus SyndromePemphigusEncephalomyelitisAutoantibodiesEndocrine GlandsEndocrine SystemEndocrine System DiseasesNational Institute of Neurological Disorders and StrokeAutoimmune Diseases of the Nervous SystemCerebellar DiseasesThymoma