Figure 1.

The course of the disease and clinical features. (A). Course of the disease. A schematic illustration of the clinical records of the proband from her first visit is presented here. (B). Normal EEG. The normal EGG of the girl was recorded at three years old. All * refer to separator. (C). Abnormal EEG. Abnormal EGG of the affected girl was first observed at six years old. The EEG was characterized by focal epileptic activity, burst suppression, hypsarrhythmia, or generalized spike-and-slow waves.