Atypical absence status epilepticus, Autistic behavior, Behavioral abnormality, Bilateral tonic-clonic seizure, Bilateral tonic-clonic seizure with focal onset, Broad finger, Broad phalanx of the toes, Cerebellar atrophy, Cerebral atrophy, Cerebral visual impairment, Choreoathetosis, Cleft palate, Cutaneous photosensitivity, Cyanosis, Deeply set eye, Delayed myelination, Depressed nasal bridge, Developmental regression, Diffuse cerebral atrophy, Diffuse white matter abnormalities, Dysesthesia, Dyskinesia, Dysphasia, Dystonia, EEG abnormality, EEG with burst suppression, EEG with spike-wave complexes, Epileptic encephalopathy, Episodic ataxia, Failure to thrive, Fatigue, Febrile seizure (within the age range of 3 months to 6 years), Focal clonic seizure, Focal hemiclonic seizure, Focal impaired awareness seizure, Focal-onset seizure, Generalized clonic seizure, Generalized myoclonic seizure, Generalized non-motor (absence) seizure, Generalized tonic seizure, Generalized-onset seizure, Global developmental delay, Hallucinations, Hyperactivity, Hypoplasia of the corpus callosum, Hypotonia, Hypsarrhythmia, Infantile muscular hypotonia, Infantile spasms, Intellectual disability, Memory impairment, Mental deterioration, Microcephaly, Micropenis, Migraine, Motor delay, Myoclonus, Nausea and vomiting, Neurodevelopmental delay, Normal interictal EEG, Pachygyria, Poor head control, Precocious puberty, Psychomotor retardation, Reduced consciousness/confusion, Renal dysplasia, Secondary microcephaly, Seizure, Self-injurious behavior, Short finger, Sleep disturbance, Sloping forehead, Spastic tetraplegia, Spasticity, Status epilepticus, Strabismus, Tremor, Umbilical hernia, Uni- and bilateral multifocal epileptiform discharges, Ureterocele, Ventricular septal defect, obsolete Focal seizures, afebril