this disorder is characterized by a high familial incidence of epileptic seizures , onset between 6 months and 3 years of age , normal development until the onset of seizures , generalized tonic-clonic seizures and often alternating hemi-grand mal , seizure precipitation by fever , and occasional combination with or transition to myoclonic-astatic and/or myoclonic seizures .
C0036572
seizures
C0009952
seizure